When ejectors are used for pumping this air, attention must be given to minimizing thrust losses.
当采用引射器来抽引冷却空气时，必须注意减少推力损失。
The new kinds of ejectors using at home and abroad, including its structures, properties and purposes are introduced.
介绍了国内外几种新型文丘里供料器的结构、特点和用途。
From this, the optimum structure was obtained. The calculated results provide the basis for the designing and using of passive ejectors.
研究结果可以为被动式引射器的设计与使用提供依据。
Graham major products are the ejectors, liquid ring vacuum pumps, condensers, heat exchangers, and complete vacuum systems used every day by people throughout the world.
格雷汉姆的主要产品是真空喷射器、液环泵、冷凝器等以及整套真空系统，在全球多个工业领域有着广泛的应用。
The mould then will be closed again, the ejectors will return, the unit will advance and the sprue tube will come again in contact with the tools to carry out a new injection.
然后模具再次闭合，顶针复位，进胶部分前行，料桶再次与相关部位相连以实现下一次新的注塑。
It is proved by the results that the performances of ejectors can be dramatically improved by properly selecting the geometrical and operation parameters of gas-solid ejectors.
结果证明：正确选择气固喷射器的几何参数和操作参数，就能大大改善它的性能。
When " holding " ( during normal operation ), non condensable, which are coming from air ingress and oxygen content in steam and condensate, must also be extracted normally by main ejectors.
当「建立真空」 （正常操作下）时，空气入口处的不可凝结物和蒸汽中的氧含量以及凝结水必须由主抽汽器排出。
When " holding " ( during normal operation ), non condensable, which are coming from air ingress and oxygen content in steam and condensate, must also be extracted normally by main ejectors.
当「建立真空」 （正常操作下）时，空气入口处的不可凝结物和蒸汽中的氧含量以及凝结水必须由主抽汽器排出。
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