Astronauts in flight must adjust to weightlessness.宇航员在飞行中得适应失重状态.Objective To observe bone mass changes during convalescence after simulated weightlessness.目的观察模拟失重恢复期骨质的变化.To apply engineering Methods : To the study of...
一对舞台姐妹演了一出化装的哑剧.A pair of stage sisters did a pantomime in costume.作为我们主攻化装的学生, 对它也有着一份独特的理解.As our main makeup of the students, it also has a unique understanding....
A nuclear holocaust seemed a very real possibility in the 1950s.核灾难在20世纪50年代似乎真的非常可能发生。It is unthinkable that we shall allow a nuclear holocaust to occur.我们若竟让核武器大屠杀的惨剧发生，简直是匪夷所思。Viewing this holocaust , they gave up any...