drainage discharge channel 中文意思是什麼
drainage discharge channel
解釋
分流渠-
Massive mining drainage has been discharged from zibo mines, shandong province. it flows downslope or along channel and finally discharge into the xiaofu river. mining drainage lowered the ph value, raised the hardness and the contents of so
山東淄博煤礦每年排出大量的礦坑水,它們多是隨地漫流或沿渠流動,最終排入孝婦河。
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