... 安全超临界反应堆 safety supercritical reactor 安全车距 safe interval 安全承载 safe bearing load ...
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safe interval period 安全间隔期
safe interval driving kilometer 安全行车间隔里程
safe surface interval 安全水面间隔时间
The questionnaires were distributed to 668 families randomly in rural areas. The questions involve in the categories of the pesticides and frequencies of use and safe interval period and so on.
随机抽取668名农户进行问卷调查，内容涉及施用农药的种类、频次、施药安全间隔期等。
Conclusion: Chaihu injection was safe and feasible when used suitable interval and frequency to dropping nose.
结论：柴胡注射液采用适宜的给药间隔和给药次数滴鼻是安全、可行的。
Compared with the old signal system, the (signal system of) quasi-moving block shortens the safe distance of inter-train tracking interval and improves railway passing capability.
准移动闭塞信号系统研究的追踪列车间的安全间隔距离与旧的信号系统下相比较短，缩短了列车的追踪间隔时间，有利于提高铁路通过能力。
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