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The purified water then descends by gravity to a basement holding tank.
经过净化的水靠重力流到地下室的另一个集水箱里。
youdao
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The purified water then descends by gravity to a basement holding tank .
经过净化的水靠重力流到地下室的另一个集水箱里。
youdao
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The purified water then descends by gravity to a basement holding tank .
经过净化的水靠重力流到地下室的另一个集水箱里。
youdao