Technical retrofit of vacuum extraction system for domestic 300 MW steam turbine;
国产300MW汽轮机真空抽气系统技术改造
neon light tube vacuum pump
霓虹灯管真空抽气泵
water ejector pump
喷水抽气泵(一种机械真空泵)
The vacuum pumps begin sucking the air from the barrel of gun.
真空泵开始抽取电子枪管里的空气。
wet system of evacuating
（用喷水空气泵抽空的装置）湿体系抽空
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。
Application of frequency-modulated speed control to air-cooled large-size JZJQH2500-224 Roots vacuum pumping system
变频调速在大型气冷罗茨真空泵JZJQH2500-224抽气系统中的应用
The air is evacuated from the furnace.
从真空炉中抽出空气。
When a pump is used to provide a vacuum, we consider it even more important to guard against leakage.
当泵被用来抽取真空时，我们认为尤为重要的是防止漏气。
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。
X Series Rotary Vacuum Pumps is a basic equip-ment used for pumping air from sealedvessels to attain vacuum condition.
系列旋片式真空泵是用来对密封容器抽除气体而获得真空的基本设备。
Comparison of vacuum is made between the single and double suction vacuum pump, between the unit with balance passage and that without balance passage.
对单级与双级抽气开平衡通道与不开平衡通道的真空泵的真空度进行了对比分析。
a suction pump used to create a partial vacuum.
用于使局部真空的抽吸泵。
Research on Vacuum Pump of Three Function: "Pumping-Breaking-Transporting";
“抽吸－破碎－输送”三功能真空泵的研究
The pump sucks air out through this valve.
这台泵通过这个阀门把空气抽出.
main scavenging pump
主抽气泵，主排气泵
The vacuum takes off the angry aircrew including the vacuum takes off angry machine, vacuum pump and centrifugal pump.
真空脱气机组是包括真空脱气机、真空泵和离心泵。
At the appropriate pressure, the chamber is opened to a high-vacuum pumping system that continues to reduce the pressure of the process chamber.
在适当的压强下，工艺室被接通高真空泵系统抽气，以继续降低工艺室的压强。
Researching on Vapor Ejecting Pump Vacuum System for Tobacco Humidity;
烟叶回潮用蒸汽喷射泵抽真空系统的研究