Meter is insufficient, the old plan.
日计不足，岁计有余。
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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