second safety time的意思|示意

For the second time on this trip, we had to drop to our knees for safety.

对于此行的第二次，我们不得不放弃对安全对我们的膝盖。

A practical procedure of elastoplastic time history analysis safety check during the second stage of the aseismic design for steel structure is also suggested.

在此基础上，提出了高层建筑钢结构抗震设计第二阶段安全检验的弹塑性时程分析实用方法建议。

Starting from this week, all kindergartens and schools should conduct safety check on drinking water machines for a second time.

由本周开始，所有幼儿园和学校应进行安全检查饮水机第二次。