To test this idea, he blocked their view of the Sun and used mirrors to change its apparent position.
为了验证这个想法，他挡住了它们看太阳的视线，并用镜子改变了太阳显现出来的方位。
2
The RS secondary server is blocked while logical log is at highlighted position shown below.
RS 次要服务器被阻塞，而逻辑日志位于如下突出显示的位置。
3
Cosynthesis results of blocked mutants elucidated the relationship of the blocked sites of the mutants and the relative position of above compounds in the biosynthetic pathway of apramycin.