safety copy的意思|示意

The Safety Representative retains one copy and the original and one copy must accompany the material to the gate.

安全代表保留一份原件，一份复印件必须随材料一起出大门。

Pass a copy of your working environment, can lower cost and fewer time carry out safety to detect.

通过你的工作环境的一个副本，可以更低的成本和更少的时间执行安全检测。

This crazy copy of the virus was the first time since 1981 that has been playing a threat to human health and safety of the killer role.

这种疯狂复制的病毒自1981年被首次发现以来，一直扮演着威胁人类健康与安全的杀手角色。