工作面；底板太灰水；防治。
Face; Very disheartened water of bottom board; Prevention and cure.
一个被称为灰水和其他被称为黑色的水。
One is known as Gray water and the other is known as Black water.
灰水通常指来自厨房、浴室和洗衣服的污水。
Grey water normally means the sewage from kitchen, bathroom, and laundry.
阿灰岩坑是一个天然洼地，由地下土壤除水造成的。
A sinkhole is a natural depression caused by the removal of underground soil by water.
另一种水驱特征曲线适于底水驱灰岩油田。
Another one is suitable to limestone oil reservoir with bottom water drive.
灰雁伏特加，汤力水，西柚角。
灰雁伏特加，汤力水，西柚角。
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