Wind turbines are large and noisy and they disfigure the landscape.风力涡轮机个头大、噪音响，还会破坏周边风景。These turbines can be broadly split into two basic types, the impulse and the reaction turbines.这些汽轮机可大致分为两种基本类型, 即冲动式和反动式.The stea...
V2火箭并非普通武器：它只能用于对付城市。原子弹也是这样。The V2 was not an ordinary weapon: it could only be used against cities. Likewise the atom bomb.一颗原子弹能摧毁一座城市。An atom bomb would destroy a city.只有总统才能授权使用原子弹。Only the President could authorize...
The law has become inoperative.该法律己无效.This rule is inoperative until further notice.此规则何时生效待通知.Of course , Harrison's analysis was inoperative.哈里森的分析显然是站不住脚的....
Moving rapidly through school, he graduated Phi Beta Kappa from the University of Kentucky at age 18.他连续跳级，18岁时就以全美优等生联谊会成员的身份从肯塔基大学毕业。Exploring the characteristics of kappa and relation between kappa and ρ by Simula - t...