filter 四级六级考研GRE

The autoptic results show that the filter plates produced by this technology have good performance.

现场试验表明,该工艺生产的板有较好的使用性能。

The characteristics of filter between no precoat and precoat were compared.

介绍了江苏省内器的使用情况,对比了不预涂和预涂器的特点。

You can still see the gas or nebulosity in big telescopes and the right filters.

用大望远镜和适度的色镜，你也可以看到那些气体或星云状物。

The lake water passes through a filter before it is piped to our homes.

湖水后用管道输送到各家各户。

The news of his appointment filtered out before it was officially advertised.

他被任命的消息在还没正式公布前就被透漏出去。

The solid particles were filtered from the solution.

固体微粒是从溶液中出来的。

Provides a 6dB-per-octave rolloff filter at 115Hz.

提供一个115赫兹时每八度6分贝的低频上移波器。

Includes AC battery recharger, charging stand, pipette holder with safety valve, and filter.

包括交流电池充电器，充电器座，移液器 架（带安全阀，以及器等）。

Sounds of cheering filtered in through the closed window.

欢呼声透关闭的窗户传了进来。

What is the shelf life of 3M's filtering facepiece respirators?

3M随弃式呼吸防护口罩的存放期是多长时间？

Water filters through the sandy soil and into the well.

水透沙土渗透到井里。

The wort holding tank receives the first wort from the various filters batchwise.

麦汁暂存罐从分批操作的各个压机接收头道麦汁。

Inside, sunlight filtered dustily through rows of high windows and settled over the empty pews.

里面，阳光从长窗的格栅上带着灰尘筛下来落在空空的排椅上。”

The existing problem in operation of siphonal sand filter and innovation were introduced.

介绍了虹吸式砂器在运行程中出现的问题及改造措施。

Foreign influence began to filter into the country.

外国势开始渗透进这个国家。

A liquid filters through a strainer,into the receptacle beneath.

液体经器流入下面的容器。

This metal net filters out the dirt.

这个金属网掉污物。

Filter out all the dirt before using the water.

在用水以前先将其中不清洁的东西掉。

Charcoal is used to filter water.

木炭是用来水的。

He invented the ultramicroscope in 1903, and two types of membrane filters in 1918 and 1922.

他于1903年发明了超显微镜，1918和1922年又分别发明了两种膜。