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干式真空泵
释义
干式真空泵
Encyclopedia
工学
真空泵
释
dry vacuum pump
干式真空泵
能在105(大气压)~10-2帕的压力范围内工作,在泵腔内不使用任何液体,排气口与大气相通,能直接向大气排气的泵。又称无油真空泵。
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past-pointing
past pointing, past-pointing
Pastry War
Pasturage Office
pasture
pasture cultivation
pasture measure of soil and water conservation
pasture meteorology
pasture plants
pasture pumping implements
pasture range plants and forage fed fresh
pasture user
pasture water deficit
pasture water requirement
pasture water supply
pasturing and soiling forages
PAT
patagium
Pa Ta Shan Jen
Patatson National Park System Pilot Site
Pat Barker
patch
patch advertisement
patch antennas
patchboard
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