vent opening 中文意思是什麼
vent opening
解釋
通風口-
On top of one of the fast - opening ends that closed to the pig receiver & launcher shall assemble vent valve, safety valve and pressure gauge, and at the bottom shall assemble drain valve, sideway inlet and vent valve to take out medium from the main pipe as the power of forcing pig and conveyance medium
靠近收發球筒快開盲板一端上部應設防空閥、安全閥及壓力表、下部設排污閥、側面設進、出油（氣、水）閥，以便從干管中取介質作為驅動清管器的動力及輸出介質。 -
An opening for outward discharge ; a vent
排氣道，通氣管向外排放物質的洞；通風孔 -
An opening, especially to a cavity or passage of the body ; a mouth or vent
通氣口一個開口，特別是身體上的洞口或通路；嘴或者通氣口
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