它提供了飞机前进所需的推力。It provides the thrust that makes the craft move forward.火箭推力的方向是由电脑控制的.The direction of the thrust of the rockets is controlled by computer.火箭作为弹道导弹的推力装置很重要.Rockets are important as thrust units for ballis...
他用大衣袖子把碎屑掸掉。He cleaned the flakes away with his coat sleeve.地上满是他刻木雕时落下的碎屑。The floor was covered with shavings from his wood carvings.你削铅笔时, 会削下许多碎屑.When you sharpen a pencil, you make chips....
方法: 用溴代及胺化反应合成了四甲基吡嗪衍生物.METHODS: The target compound was prepared by the bromination and amination reaction.用溴—甲醇溶解Al_2O_3, 其回收率在91%以上.If Al 2 O 3 is dissolved by Br 2 - CH 3 OH, its Recovery rate is above 91 %.用溴比用氯时产出率...
Marks in the roadway seem to indicate that he skidded taking a sharp turn.从车道上的痕迹来看，他似乎在急转弯时打滑了。His drive hit a tree and caromed off into a roadway.他击出的球撞到一棵树上而反弹到路上.The destructive reasons and countermeasures of bolting...
他们最终的目标是为匈牙利建立起市场经济体制。Their ultimate aim was a market economy for Hungary.他在神学和政治事务上都是最终的仲裁人。He was the ultimate arbiter on both theological and political matters.等到最终的数字统计出来后，几乎可以肯定销售额下降了。When the final numbers are tall...