weight per horse power

例句：

1. 1. Theweight of the car is measured in pounds.
   汽车的重量以磅为单位测量。
2. 2. The loadcapacity of the truck is 5000 kilograms.
   卡车的载重能力为5000公斤。
3. 3.The engineer calculated the weight per horse powerfor the new machine.
   工程师计算了新机器的每马力重量。