- aortic valve主动脉瓣;
- angle valve角阀;
- altitude valve高度阀（航空发动机汽化器的可调整阀）;
- air valven.通气管之活瓣;气阀;风阀;
- aeroplane oil航空润滑油;
- admission valve进气阀，进浆阀;
- adjusting valve调整阀，调节阀;
- burn the midnight oil（学习或工作）开夜车;熬夜;
- boiled oil熟油;
- blow off valve放散阀;
- bleeder valve[化] 泄放阀;
- bicuspid valve二尖瓣;
- bean oiln.豆油;
- ball valve球阀，弹子阀;
- crude oiln.原油;
- cottonseed oiln.棉花子油;棉油;
- cooking oil食油;
- cod-liver oiln.鱼肝油，鳕鱼肝油;
- coconut oiln.椰子油（可制肥皂，烛和食品等）;椰油;
- check valven.止回阀;
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