1.
The air is evacuated from the furnace.
从真空炉中抽出空气。
2.
The air having been pumped out, the tube is reduced to a vacuum.
空气抽出后，管子已处于真空状态。
3.
The pump sucks air out through this valve.
这台泵通过这个阀门把空气抽出.
4.
The air was removed from between the two pipes.
两根管子之间空气已抽出。
5.
Sometimes I can slip out for some fresh air.
有时我也可以抽空溜出去呼吸一些新鲜空气。
6.
wet system of evacuating
（用喷水空气泵抽空的装置）湿体系抽空
7.
It is enough to know that the sound becomes weaker as the air is taken from the bottle.
只要知道当空气从瓶中抽出时铃声变弱就够了。
8.
There is not much air inside an electric lamp; we have to take it out.
灯泡里的空气并不多，我们必须把它抽出来。
9.
Even with the air pumped out the bulb, the tungsten filament slowly vaporizes.
即使灯泡中的空气被抽出，钨丝也会慢慢地蒸发。
10.
The pump sucks air out (of the vessel) through this valve.
这台泵通过这个阀门把（容器中的）空气抽出.
11.
It is concluded that the single suction double acting unit with balance passage is better than the double suction unit without balance passage.
得出了开平衡通道的单级抽气可以设计得比不开平衡通道的双级抽气真空泵真空度高的结论。
12.
Dehumidification: Removal of humifity from the air.
抽湿:把空气中的湿气抽除。
13.
I slid the drawers out. They were empty too, with not a trace of dust.
我拉出抽屉。抽屉也是空空的，一尘不染。
14.
neon light tube vacuum pump
霓虹灯管真空抽气泵
15.
automatic sequential air sampler
自动连续空气抽样器
16.
steam-jet air ejector
蒸汽喷射式空气抽逐器
17.
The air portion of the filtrate is extracted from the top of the Receiver by the Vacuum Pump.
滤液中的气体部分由真空泵从接收罐的顶部抽出。
18.
The old drawer exuded a smell of camphor.
陈年抽屉放出樟脑气味。