... evacuating equipment 抽气装置 excess electron 过剩电子 exciter set 激励机组 ...
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... 曲轴箱吸吸器crankcase breather 抽气装置air extracting device 油气分离器oil separator ...
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... air purge ==> 气洗空气净化空气清洗 air purge unit ==> 抽气装置 air purged instrument ==> 空气清洗式计量仪器 ...
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本实用新型由吸罐、导管、抽气装置、调节阀组成。
The adjustable suction pot comprises a suction pot, a guide tube, an air extracting device and an adjusting valve.
本发明涉及真空包装机，特别涉及一种真空包装机的真空工作室、工作平板及密封抽气装置。
The invention relates to a vacuum packer, especially a vacuum chamber, working flat board and sealing air extraction device.
本发明的低温吸附组合抽气装置，不需要液氮储存筒，具有结构简单、紧凑、小 巧的特点。
Storage cylinder for liquid nitrogen is not needed in the invention and its structure is simple and compact so on.
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