They used an air compressor to take in atmospheric air, compress it, and force it into the cabin.他们用一台空气压缩机把大气中的空气吸进来，加以压缩，然后送入船舱。Automatically unloads and stops a compressor if it is not needed.需求量不大的时候,它会自动卸载和停一台机.Elec...
They used an air compressor to take in atmospheric air , compress it, and force it into the cabin.他们用一台空气压缩机把大气中的空气吸进来, 加以压缩, 然后送入船舱.The compressor - outlet pressure is nearly constant around the circumference.压气机出口压力沿圆周...
厄克特先生使用了假名，警方的调查因此受阻。Police have been hampered by Mr Urquhart's use of bogus names.入侵行动因遭遇到了出乎意料的顽强抵抗而受阻。The invasion was held up by unexpectedly stout resistance.道路由于车辆过多而受阻.The street was closed off for too many c...
现在我们等着他们交上作文。Now we wait for them to turn in their essays.你已经写完作文了 吧 ?你动作真快.Have you finished your composition already? You are very speedy.写作文之前先写个提纲.Make an outline before trying to write a composition....