n. emptying ; evacuation
... evacuate① 抽空；放空；排净② （从罐内）排气 evacuation抽空；放空；排净 evaporability挥发性；汽化性；可蒸发性 ...
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排净效率 purging efficiency
内燃机排气净化 Purification of IC Exhaustive Gas
自动排渣净油机 self-discharging purifier ; self-opening purifier
油气排净证明 gas free certificate
排气净化器 exhaust purifier ; [机] exhaust gas serukker ; exhaust gas purifier
一氧化氮净排放率 NSNO Net Specific NO
排放物净化 cleaning of emissions
排气净化设备 Exhaust air cleaning plant
催化式排气净化器 catalytic converter
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