double-rate meter

例句：

1. 1.The company uses a double-ratemeter to measure the amount of gas usedin its furnaces.
   该公司使用双费率表来测量其炉子中使用的气体量。
2. 2. The double-rate meter isan essential tool for monitoring the consumption ofenergy in industrial processes.
   双费率表是监测工业过程中能源消耗的重要工具。
3. 3. The double-rate meter was designed to providemore accurate readings than traditional meters.
   双费率表被设计为提供比传统表更准确的读数。