water position alarm 水位报警
lower limit water position 下限水位
smart water position sensor 智能水位传感器
water-seal position 止水位置
Until now, I am reminded that carry water position, and my heart is full of pride.
直到现在,我想起那挑水的姿势,心里还充满了自豪感。
However, if the planet is in a good position, astronomers look for three key things: water, air and rock.
然而如果这颗行星处于很好的位置,天文学家会寻找三样关键的东西:水、空气和岩石。
Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.
有些地区由于土质、地形位置或与河流或地下水的距离,几乎没有水分能提供给植物,而另一些地区则有。
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