You might even try the trusty old flow chart.
你甚至可以试试古老而值得信任的流程图。
Especially, the measure of some causticity liquid is very difficult using the old flow meter.
特别是工业中对一些具有腐蚀性的液体的流量测量，普通的流量计根本无法测量。
Especially, the measure of some causticity liquid is very difficult using the old flow meter.
特别是工业中对一些具有腐蚀性的液体的流量测量，普通的流量计根本无法测量。
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