汽油检测系统由毛细管节流器组成.The gasoline detection system consists of a capillary restriction.近来,可采用在冷却塔的水管系统中设置旁通阀或节流阀.The latter may be used with bypass or throttling valves in the tower water pipework circuit.当达到发动机额定转速时,节流板趋于关闭位...
Now and then they heard the roar of a heavy truck.他们不时地听到大卡车的轰鸣声。Now and then I referred a client to him.我不时地介绍客户给他。Stir the batter every now and then to keep it from separating.不时搅动面糊，防止其成分散开。...
The reaction produced some oxides and other by - products.该反应产生了几种氧化物和其他伴生物.Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.非离子型表面活性剂有聚氧乙烯缩合物糖酯和烷基胺氧化物.Nonionic surface - active agents...