明渠流量计: open channel meter; open-channel meter detail>> 氧流量计: oxygen flowmeter detail>>
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open-channel meter 开槽流量计
open-channel meter detail 明渠流量计
ultrasonic open channel flow meter 超声波明渠流量计
open channel meter
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以上为机器翻译结果，长、整句建议使用 人工翻译 。
Traditionally the flowrate of returning activated sludge was measured by open channel flowrate meter with higher error, difficult transform of flowrate coefficients and inconvenient calibration.
以往常采用明渠流量计测回流污泥量，不仅误差大，而且流量系数转换、 标定都十分困难。
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