几分钟之后普洛丝小姐已站在他身旁消声说话.Within a few minutes, Miss Pross stood whispering at his side.必须提供适当的消声和隔振以及防冻措施.Suitable noise and vibration isolation, and protection against freezing must be provided.人类中断服务,任何激烈的争论就会消声匿迹了.There w...
DuPont has offered the technology to fluoropolymer manufacturers globally in a royalty - free exchange.并且,杜邦已将这一技术免费提供给全球范围内的氟聚合物制造商.The preparation methods and materials such as ( fluoro - monomer ) and fluorosurfactant...
Prof. John Willis is our teacher of English.约翰·威利斯教授是我们的英语老师.I got into our dinghy while Willis took the helm and positioned the boat for the photograph.我钻进我们的小艇，威利斯掌舵，将船摆好位置准备拍照。Now, Mr. Willis . I'm sure that won&...
轮轴发涩, 该上油了.The axle doesn't work smoothly. It needs oiling.轮轴动时,轮子也跟着转动.The wheel turns when its axis moves.通过风机的气流基本上是与叶轮轴平行的.The flow of air through the fan is substantially parallel to the impeller axis....