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1.The piston-type flowmeter is used to measure the flow rate of liquids.
活塞式流量计用于测量液体的流速。
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2.The piston-type flowmeter was designed to accurately measure the amount of gas flowing through it.
活塞式流量计被设计用来准确测量通过它的气体量。
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3. The piston-type flowmeter has become a popular choice for measuring the flow of industrial fluids.
活塞式流量计已成为测量工业流体流动量的一个流行选择。