查询词典 vacuum

While encapsulating RF MEMS switches in low vacuum diminishes the air damping and improves the switch speed and operation voltage, the performances of a switch is incident to being influenced by outside environment.

可见，RF MEMS开关用低真空封装可以减小空气阻尼、改善开关速度和执行电压的同时，开关的性能却容易受外界环境因素的影响。

The specimen were cleaned thoroughly before the measurement, and degased in vacuum to get rid of the air film.

至今科学工作者仍在不断地寻求新的原理和方法以便更精确地测量材料的密度。

Voltage type, it uses a closed rotor, can be widely used in smoke delivery type, delivery type air pressure and vacuum conveying system conveying equipment, it can guarantee the flow pipeline pressure, not leaking, safe delivery and collection node materials, and for this reason called the million air lock, and it can not only pressure, while both common features.

耐压型，它采用封闭型转子，可以广泛用在吸送式，压送式气流输送系统和负压输送设备上，它可以保证输送管内的气流压力，不泄漏，能够安全的输送和收结物料，所以在这方面称为万锁气器，它不但可以耐压，同时兼备普通型功能。

The fresh-keeping effects of Portunus Trituberculatus were investigated. The results showed the efects were better when air components and ratios of MAP were CO2 50% N2 50%. Compared with coating package and MAP, vacuum packing could inhibit the production of melanin in Portunus Trituberculatus gills and legs and prolong storage period effectively at 0-4℃.

结果表明：气调包装气体配比为CO2 50%，N2 50%的保鲜效果较好；但真空包装与气调包装和涂膜包装的保鲜效果相比，0～4℃下，真空包装可有效抑制梭子蟹腮部和足部褐变并延长三疣梭子蟹保鲜期，保鲜效果好于气调包装和涂膜包装。

It is used to put through or cut off the air passage in vacuum pipeline.

阀门用于接通或切断真空管路中的气流。

It leaves an air pocket, vacuum-sealed.

它就会排出气泡打破真空状态

However, no air pump to form a vacuum it?

但是，没有空气泵能形成真空吗？

Water ring vacuum pump in the waste water and air into the tank together.

水环式真空泵中废弃的水和空气一起被排到水箱里。

Not any air gets into the vacuum tube.

没有空气能进入真空管。

I SP* is the vacuum impulse that would be obtained by a sonic nozzle in air-breathing motor work, and thus may be ignored.

i 特*是真空的冲动将得到一音速喷嘴在吸气式发动机的工作，从而可能会被忽略。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。