它的喷嘴抹了某种润滑油。Its nozzle was smeared with some kind of lubricant.天气冷时齿轮润滑油可能凝结而形成凹槽.Gear lubricants may congeal and channel in cold weather.这个月我们需要更多润滑油.We shall require more lubrication oil this month....
这场口角看来是彻底破裂的导火线.The last of these rows seems to have been the last straw.连一句话也是一条导火线.Even a words are also a fuse.他拉出导火线, 点燃它, 并且跑到岩石后以求安全.He paid out the fuse, lit it, and ran behind the rock for safety....
Fraunhofer technicians can reduce air pressure inside, making ears pop , to mimic cruising at 35,000 feet.弗劳恩霍夫的技师们可以将机舱内的气压降低到让耳朵发胀的程度, 以模拟在35,000英尺飞行的状态.The Fraunhofer device depends on a temperature gradient: the grea...