low water level 低潮面 ; 低水面 ; 低潮位低水位
low water level alarm 低水位警报器 ; 高低水位报警器
lowest low water level 最低低水位 ; 最低潮位 ; 最低低潮位 ; 历史最低潮位又称历史最低潮水位
mean low water level 平均低水位 ; 平均低潮面 ; 平均低潮位
low water-level alarm 低水位报警器
low-water level switch 低水位开关
low water level safety device 低水位安全装置
high-low water level alarm 高低水位报警器
When the water level was high, the user needed only to descend a few steps to reach it; when it was low, several levels would have to be negotiated.
当水位高的时候,使用者只需要往下走几个台阶就能到达井的部位;当水位低的时候,就要走好几层了。
This is my report: One of the major problems in the Biramichi river is that the level of oxygen in the water is too low.
这是我的报告:比拉密契河的主要问题之一是水中的氧气含量太低。
Even though we worked so hard, the production level of fruit was still low because it was short of water there.
尽管我们如此努力劳作,水果的产量仍然很低,因为那里缺水。
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