sidereal day恒星日(23时56分)Tropical year, and sidereal year are two different concepts.回归年与恒星年是不同的两个概念.sidereal hour恒星时(恒星日的 1/24)sidereal time恒星时sidereal year恒星年(365日6时9分9秒)The sidereal year is not used to construct a calen...
He slipped and fell on an airplane gangway as the cameras rolled.在摄像时他不慎滑倒在飞机座位间的通道上。He slipped and fell on an airplane gangway as the cameras rolled...在摄像时他不慎滑倒在飞机座位间的通道上。Walking along the narrow gangway of the theater,...
本节只讨论其中的两类: 金属离子钝化剂和过氧化物分解剂.Only two types will be included in present discussion: metal - ion deactivators and peroxide decomposers.为方便起见,材料分为三大类: 金属, 塑料或聚合物和陶瓷.It is convenient to divide materials into three main types...
The paper introduces the product of class H polyester - imide solventless impregnating varnish.本文介绍一种不饱和聚酯亚胺类型的H级无溶剂浸渍树脂.Materials for Rtating and Static Rings : Impregnating resin ( metal ) graphite, Carborundum , hard ...
She hurried to the kitchen in back of the store.她赶紧进到商店后面的厨房。The crowd in back of Old Chen began to clamour.陈老七背后的闲人们大噪起来.In back of us were the woods, below a stretch of meadow, then the sea.我们后面是树林, 下面是一片草地, 再过去就是大海了....