During this time, therefore, have to guarantee the safety of water lines.

因此在这段时间内，仍要保证水泵线路的安全。

youdao

Clear flow lines, Protection of health and safety;

医疗流线分明，保障卫生安全；

youdao

Clear flow lines, Protection of health and safety;

医疗流线分明，保障卫生安全；

youdao