They advocate the retention of our nuclear power plants.

他们主张保留我们的核电厂。

The power plant burns used vehicle tyres as fuel.

这家电厂用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响电力系统运行质量和安全的最重要的控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加能发电的研究,加速能电站的建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内电厂在实施电力信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发电厂是一个耗水大户,循环冷却塔的耗水量约整个电厂耗水量的60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体力学软件对火电厂中直接空气冷凝器的换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法测重庆市某供电局314名女职工妇科健康状况,包括妇科常及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保核电厂安全,应按基建程序完成勘测各阶段任务,特别是对断层的鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研发的电厂保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照电厂2(上标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和电镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发电厂燃煤锅炉除渣系统的重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、电厂、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后的生产和销售过程中将一如既往地把好产品质量关，为顾客提供热情优质的服务，欢迎各新老用户光临我公司并真诚合作。

They advocate the retention of our nuclear power plants.

他们主张保留我们的核电厂。

The power plant burns used vehicle tyres as fuel.

这家电厂用废弃轮料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响电力系统运行质量和安全的最重要的控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加快原子能发电的研究,加速原子能电站的建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内电厂在实施电力信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发电厂是一个耗水大户,循环冷却塔的耗水量约整个电厂耗水量的60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体力学软件对火电厂中直接空气冷凝器的换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供电局314名女职工妇科健康状况,包括妇科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保核电厂安全,应按基建程序完成勘测各阶段任务,特别是对断层的鉴价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研发的电厂保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照电厂2(上标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和电镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发电厂煤锅炉除渣系统的重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、电厂、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后的生产和销售过程中将一如既往地把好产品质量关，为顾客提供热情优质的服务，欢迎各新老用户光临我公司并真诚合。

They advocate the retention of our nuclear power plants.

他们主张保留我们。

The power plant burns used vehicle tyres as fuel.

这家用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响力系统运行质量和安全最重要控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加快原子能发研究,加速原子能站建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内在实施力信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发是一个耗水大户,循环冷却塔耗水量约整个耗水量60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体力学软件对火中直接空气冷凝器换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供局314名女职工妇科健康状况,包括妇科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保安全,应按基建程序完成勘测各阶段任务,特别是对断层鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研发保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照2(上标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发燃煤锅炉除渣系统重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后生产和销售过程中将一如既往地把好产品质量关，为顾客提供热情优质服务，欢迎各新老用户光临我公司并真诚合作。

They advocate the retention of our nuclear power plants.

他们主张保留我们的核电厂。

The power plant burns used vehicle tyres as fuel.

这家电厂用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响电系统运行质量和安全的最重要的控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加快原子能电的研究,加速原子能电站的建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内电厂在实施电信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

电厂是一个耗水大户,循环冷却塔的耗水量约整个电厂耗水量的60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体软件对电厂中直接空气冷凝器的换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供电局314名女职工妇科健康状况,包括妇科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保核电厂安全,应按基建程序完成勘测各阶段任务,特别是对断层的鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研的电厂保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照电厂2(上标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和电镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是电厂燃煤锅炉除渣系统的重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、电厂、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后的生产和销售过程中将一如既往地把好产品质量关，为顾客提供热情优质的服务，欢迎各新老用户光临我公司并真诚合作。

They advocate the retention of our nuclear power plants.

他主张留核电厂。

The power plant burns used vehicle tyres as fuel.

这家电厂用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响电力系统运行质量和安全最重要控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

要加快原子能发电研究,加速原子能电站建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内电厂在实施电力信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发电厂是一个耗水大户,循环冷却塔耗水量约整个电厂耗水量60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体力学软件对火电厂中直接空气冷凝器换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供电局314名女职工妇科健康状况,包括妇科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确核电厂安全,应按基建程序完成勘测各阶段任务,特别是对断层鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研发电厂漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照电厂2(上标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和电镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发电厂燃煤锅炉除渣系统重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、电厂、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后生产和销售过程中将一如既往地把好产品质量关，为顾客提供热情优质服务，欢迎各新老用户光临公司并真诚合作。

They advocate the retention of our nuclear power plants.

他们主张保留我们的核电厂。

The power plant burns used vehicle tyres as fuel.

这家电厂用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响电力系统运行质量和安全的最重要的控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加快原子能发电的研究,加速原子能电站的建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内电厂在实施电力信息化过程中,在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发电厂是一个耗水大户,循环冷却塔的耗水量约整个电厂耗水量的60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体力学软件对火电厂中直接空气冷凝器的况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供电局314名女职工妇科健康状况,包括妇科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保核电厂安全,应按基建程序完成勘测各阶段任务,特别是对断层的鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研发的电厂保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照电厂2(上标﹟)锅炉屏式过器泄漏进行了金相试验、晶间腐蚀倾向性试验和电镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发电厂燃煤锅炉除渣系统的重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、电厂、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后的生产和销售过程中将一如既往地把好产品质量关，为顾客提供优质的服务，欢迎各新老用户光临我公司并真诚合作。

They advocate the retention of our nuclear power plants.

他们主张保留我们核电厂。

The power plant burns used vehicle tyres as fuel.

这家电厂用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

轮机调速系统是影响电力系统运行质和安全最重要控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加快原子能发电研究,加速原子能电站建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内电厂在实施电力信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发电厂是一个耗大户,循环耗约整个电厂耗60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体力学软件对火电厂中直接空气凝器换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供电局314名女职工妇科健康状况,包括妇科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保核电厂安全,应按基建程序完成勘测各阶段任务,特别是对断层鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研发电厂保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照电厂2(上标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和电镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发电厂燃煤锅炉除渣系统重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、电厂、利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后生产和销售过程中将一如既往地把好产品质关，为顾客提供热情优质服务，欢迎各新老用户光临我公司并真诚合作。

They advocate the retention of our nuclear power plants.

他们主张保留我们的核电厂。

The power plant burns used vehicle tyres as fuel.

这家电厂用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响电力系统运行质量和安全的最重要的控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加快原子能发电的研究,加速原子能电站的建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内电厂在实施电力信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发电厂是一个耗水大,冷却塔的耗水量约整个电厂耗水量的60％。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

文利用计算流体力学软件对火电厂中直接空气冷凝器的换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供电局314名女职工妇科健康状况,包括妇科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保核电厂安全,应按基建程序完成勘测各阶段任务,特别是对断层的鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新研发的电厂保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照电厂2(标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和电镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发电厂燃煤锅炉除渣系统的重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、电厂、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。公司在今后的生产和销售过程中将一如既往地把好产品质量关，为顾客提供热情优质的服务，欢迎各新老用光临我公司并真诚合作。

They advocate the retention of our nuclear power plants.

他们主张保留我们核厂。

The power plant burns used vehicle tyres as fuel.

这家厂用废弃轮胎作燃料。

Hydraulic actiyator system is one of the important systems for operating quality andsecurity of electrical power plant.

水轮机调速系统是影响力系统运行质量和安全最重要控制系统之一。

We should accelerate our research in atomic power generation and speed up the building of atomic power plants.

我们要加快原子能发究,加速原子能站建设。

During the process of information systems automation in domestic power plants, the problem of island information robotization systems exist universally.

当前国内厂在实施力信息化过程中,普遍存在着所谓“孤岛自动化系统”问题。

Fossil-fired power plant is a bigger water consumer, and the cooling tawer will take 60 percent water consumption of the whole power plant.

火力发厂是一个耗水大户,循环冷却塔耗水量约整个厂耗水量60％以上。

The major nork of this paper is applying commercial CFD software to simulate heat dissipation of direct air-cooled condenser in power plants.

本文利用计算流体力学软件对火厂中直接空气冷凝器换热情况进行数值模拟。

Methods Three hundred and fourteen cases of female staffs in a power plant received gynaecologic exam including gynaecologic routine examination and cervical smear.

方法检测重庆市某供局314名女职工科健康状况,科常规检查及宫颈涂片。

In order to ensure safety in nuclear power plant,must according to capital construction procedure,complete one's work of prospecting,especially give and appraisal of paraclase.

为了确保核厂安全,应按基建程序完成勘测各阶段任务,特别是对断层鉴定与评价。

The newly-developed intelligent design software of insulation paint for power plant is introduced, and its functional structure and the main algorithm models are tressed.

介绍了最新发厂保温油漆智能化设计软件,着重阐述其功能结构和主要算法模型。

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

摘要针对日照厂2(上标﹟)锅炉屏式过热器泄漏进行了金相试验、晶间腐蚀倾向性试验和镜能谱分析。

Screw ash remover is main auxiliary equipment in ash handling system of coal combustion boiler in power plant.It can discharge coal ash into the ashpit continuously and evenly.

螺旋除渣机是火力发厂燃煤锅炉除渣系统重要附机，能将灰渣连续、均匀地排入冲灰沟。

May be used for highway , railroad , tunnel , aeroport , electric power plant , irrigation works , mine dock , rubbish broadly filling the building projects burying field , building to reach other.

可广泛用于公路、铁路、隧道、飞机场、厂、水利工程、矿山码头、垃圾填埋场、建筑及其它土建工程。本公司在今后生产和销售过程中将一如既往地把好产品质量关，为顾客提供热情优质服务，欢迎各新老用户光临我公司并真诚合作。