The definition of operator homeomorphism mapping , together with its characterizations, is given in this paper.在算子开集理论中给出了算子同胚映射的概念, 得到了算子同胚映射的若干性质.Many of these adulatory characterizations were attributed to unnamed sou...
They were anxious to bring the washing in before it rained.他们急于在下雨前把洗好的衣服收进屋子。What if it rained and then froze all through those months?要是那几个月一直又下雨又冰冻怎么办？Most of the games have been rained off.大部分比赛都因下雨而暂停了。...
在底片上把图像上部的这个不重要的细节涂抹掉.Block out this unimportant detail at the top of your picture.光对底片发生作用从而产生照片.Photographs are produced by the action of light on film.你拍过几张底片了?How many exposures have you made?...
这是因为当水银柱跌落, 生长也随之变缓——直到几乎无法测出的程度.That's because as the mercury drops , growth slows the point where it's almost imperceptible.但随着拉丝速度增大,超声振动引起的拉拔力减小变缓.Ultrasonic oscillation also decrease uneven deformation of ...