Sometimes directly to differential pressure in the process of production as the process parameters, differential pressure measurement for flow and material level measuring indirect means.
生产过程中有时直接以差压作为工艺参数，差压测量还可以为流量和物位测量的间接手段。
Sometimes directly to differential pressure in the process of production as the process parameters, differential pressure measurement for flow and material level measuring indirect means.
生产过程中有时直接以差压作为工艺参数，差压测量还可以为流量和物位测量的间接手段。
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