列车同时也接受了隧道中的严格的安全演习。
The train was also subjected to a rigorous safety exercise in the tunnel.
安全专家说，过去行之有效的安全演习仍是最好的办法。
The old tried-and-true security drill is still the best, security experts say.
你应该参加地震演习，并教给你的孩子一些有关地震的安全知识。
You should do earthquake practice and teach your children about earthquake safety.
许多公司对机器安全和维护问题有各种各样消防演习式的训练。
Many companies have various urgent fire drills on machine security and maintenance issues.
许多公司对机器安全和维护问题有各种各样消防演习式的训练。
Many companies have various urgent fire drills on machine security and maintenance issues.
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