To determine the safety water level and the warning water level is of chiefly assignment for the new gauge.

确定各水文站保证水位和警戒水位，是新建水文站的首要工作任务之一。

youdao

To determine the safety water level and the warning water level is of chiefly assignment for the new gauge.

确定各水文站保证水位和警戒水位，是新建水文站的首要工作任务之一。

youdao