在通道里，他讓她自己小心地繞過小推車和其他障礙物。In the corridors he let her navigate her own way round the trolleys and other obstacles.無放流式調(diào)節(jié)器只有在通至調(diào)節(jié)機構(gòu)的管道排氣時才消耗空氣.The non - bleed controller uses air only when exhausting the line to the contro...