梯形是具有两平行边的四边形.A trapezoid is a quadrilateral with two parallel sides.双梯形的试样将产生切变脱胶现象.A double trapezoidal specimen will generate shear debonding.阀杆上的短梯形螺纹适用于快速启闭操作.Stub acme thread on stem provides rapid open - close ope...
料腿则起着对产生的相当大的背压加压密封作用.Diplegs play an important role as pressure seals against the considerable back pressure generated.说明: 1, 汽轮机型式: B - 背压式汽轮机, C - 抽汽冷凝式汽轮机.Notes: 1. Type of steam turbine: B - Backpressure turbine, C ...
As soon as the volume steadies itself , the trill begins to descend chromatically, never resting.当音量稳定下来后,富有色彩的颤音时不时出现, 从未停止.Having a baby often steadies young parents down.有个孩子常常能使年轻的父母安稳下来.Danger steadies some people.有...
Every man thinks his own geese swans.每个人都以为自己的东西了不起。In the fall we sometimes hear honks as a flock of geese flies south.到了秋天,有时我们能听到南飞雁群的叫声.All one's geese are swans.自吹自擂，王婆卖瓜,自卖自夸。The Thames was in spate, with floc...