在圆形活塞的VV化油器中, 活塞是由进气歧管真空移动的.In the roundpiston VV carburetor, the piston is moved by intake - manifold vacuum.这个真空叫做进气歧管真空.这种进气歧管真空随运转情况而变化.This vacuum, called intake - manifold vacuum, varies as the operating conditions...
演奏钢琴的戴夫将这支曲子反复弹了两三遍。Dave, the pianist, played it over a couple of times.本赛季末只有两支队伍降级。Only two go down at the end of this season.这支武装部队已发动进攻要夺回失去的阵地。The armed forces have launched offensives to recapture lost ground....
他在北海学会了潜水员这一行的本事。He learnt his trade as a diver in the North Sea.潜水员向后翻身入水。The diver flipped over backwards into the water.我要求和有经验的潜水员搭档.I asked to get buddied up with an experienced diver....