电离层是指含有带电物质的空间区域.The ionosphere is that region of space contatining electrically charged species.其上限由电离层的状态而决定.Its upper limit is determined by the conditions in the ionosphere.火箭和人造卫星能够到达电离层以上极远的地方.Rockets and artificia...
This led Zagreb's twin town, Mainz, to donate £70,000-worth of high-quality equipment.这使得萨格勒布的友好城市美因茨捐赠了价值7万英镑的高品质装备。Edgar cast a disdainful look at his twin.埃德加朝他的双胞胎兄弟投去鄙夷的目光。The plane is an eight-seater with twin...
He tried to restore some semblance of normality to their home life.他力图使他们的家庭生活恢复正常.After the flood there was a slow return to normality.水灾后,情况慢慢恢复正常.A complete return to normality may take weeks.完全恢复正常状态可能需要多个星期....
鸡的翅膀逐渐退化, 不会在空中飞行了.The wings of the chicken have become vestigial; it can no longer fly.在一些干旱地带存在严重的土地退化问题。There are serious problems of land degradation in some arid zones.如果你老不用脑，那么这一特殊才能就会退化。If you allow your mind to ...
口内的白斑是由吸烟引起的 吗 ?Could the white patches in my mouth be caused by smoking?正畸支抗的设计和控制对于矫正成功是至关重要的因素之一,通常由口内的单个牙 、 组牙或口外装置来实现.Single tooth, a group of teeth or extraoral anchorage can be used in anchorage control....
It is cool and filter the precipitated caesium dichloroiodide.这是冷却,滤出沉淀的二氯碘化铯.Caesium - 137 is a radioactive isotope, formed mainly through nuclear fission.铯-137是一种放射性同位素, 主要由核分裂产生.Caesium is one of the radio - contamina...
His best friend was killed by police under extremely questionable circumstances.他最好的朋友在极其可疑的情况下被警察打死了。It is questionable whether the expenditure on this project is really justified.该项目的开支是否真的合理还未可知。He has been dogged by ...