Preconditioned con- jugate gradient algorithm is a fast and accurate computational algorithm.

预条件共轭梯度法是一种精确并且收敛迅速的计算方法。

Paw print, or pugmark, tracing is another common technique for counting tigers.

爪印和老虎的足迹同样是常用的计算老虎数量的方法。

Based on the experiment of sand and clay,the computing method of buoyance without seepage is analyzed.

通过对砂土和粘土的试验,研究无渗流条件下地下结构浮力的计算方法。

The paper discusses the calculation and its property of the rate of combustion heatrelease for prechamber diesel engines.

文章讨论予燃室柴油机的燃烧发热规律的计算特点和方法。

It is calculated as half of the value of the sampling rate.Passing this level causes aliasing distortion, or foldover.

它的计算方法是将采样二，超过这个数值将会导致折叠失真，或称折叠。

The frequency domain analysis methods for hydroelasticity of very large floating structures are discussed and reviewed in the paper.

本文对大型浮体水弹性响应的频域计算方法做综述和介绍。

A method is also presented for calculating the side area and volume of critical rocks with arbitrary pentahedron as example.

任意五体为例,介绍危石侧、的计算方法。

This paper gives the calculation method for the standard parameters such as internal surface area,volume and quality etc.of toriconical head.

本文给出折边锥形封头内、容和质量等标准参数的计算方法。

The phase shift theory and transmission line model of inertance tube in the Stirling type pulse tube cooler were introduced.

介绍斯特林型脉管制冷机中惯性管调相的原理和惯性管的传输线理论模型，给出惯性管尺寸的优化计算方法。

This paper presents how to automatically recognize components in a digital iconological image by labeling connected component and calculate its compactness and centriod.

通过对目标连通区域标记及紧凑度、重心位置计算的方法来实现数字图像中特征目标自动识别的功能。

With project instance, this paper introduced the calculation procedure and method about lofting and designing the tunnel stringcourse with sweeping matrix vertical curve.

结合工程实例,介绍大半径竖曲线巷道腰线放样设计的计算步骤和方法。

A simple method for calculating the standard heats of formation of organic compounds containing carboxide using the inductive effect index is built up.

利用诱导效应指数建立一个含羰基有机化合物的标准生成热的简单计算方法。

The method of calculating microstepping currents for variable reluctance stepping motor with equal microstep angle was described when motor torque characteristics were sinusoidal shapes.

摘要针对反应式步进电动机的正弦转矩特性，介绍等步距角细分电流的计算方法。

Methods Colophony globules were administered to rats by gastrogavage and the gastric emptying rate was calculated by counting the number of colophony globules in stomach.

方法采用胃饲树脂小球并计数的方法计算胃排空,采用高灵敏度感应片传感器记录在体胃在用不同剂量的健脾消胀制剂前后的运动改变。

The quantum chemical theoretic and experimental studies on the configuration,state of aggregation and carbocyanine molecular structure domino effect of its properties are introduced in this paper.

本文介绍碳菁分子构型、聚集态及碳菁分子性质的结构效应的量子化学理论与实验研究情况,综述国内外学者对碳菁分子的量子化学计算方法的研究进展。

The only way to make a real-time kinoform is to use the liquid crystal spatial light modulator.And the kinoform is valuable to optical information processing and optical measurements.

摘要利用液晶空间光调制器制作相息图是目前惟一的一种能实现动态实时计算全息的方法，它在光信息处理和光学测量方具有重要的应用价值。

In this paper, the two calculation methods including M method and finite linear element method (FLEM) of anti-slide pile are improved based on the researches of the predecessors.

摘要本文在前人研究的基础上对桩前土体需要开挖的抗滑桩提出一种新的计算方法，即似m法。

This paper,by using analysable method of static balance,presents the calculated balance position and balance mass of large bell for blast furnace,so as to improve installational speed and quality.

文章采用静平衡分析的方法,给出高炉大钟的平衡位置和平衡质量的计算方法,可有效提高大钟的安装速度和质量。

The familiar structures of loose core and ejector of hydrocylinder in injection mold were introduced.The calculating method of selecting hydrocylinder and the key points in using it were discussed.

介绍液压油缸在注塑模具中常见的抽芯及顶出结构,并对选取油缸的计算方法和使用要点进行阐述。