有必要拟写、演练和检验防范计划。
Preparedness plans need to be written, rehearsed and tested.
l编制公司安全专项管理计划，熟悉应急预案管理及演练等。
L staffing company safety special management plan, familiar with emergency plan management and exercises, etc.
事实证明，这是一项挑战-每一步都必须计划和演练，每一道划痕、凹痕或难看的焊缝都将‘有目共睹’。
This proved to be challenging - every step had to be planned and rehearsed, for every scratch, dent or unsightly weld would be visible for all to see.
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