Flowrate insufficient or too low head.

流量不足或扬程太低。

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The medium has an excellent purification efficiency and a very low head loss.

该介质显示优异的净化效率和极低的压降。

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The medium has an excellent purification efficiency and a very low head loss.

该介质显示优异的净化效率和极低的压降。

youdao