例句與造句

1. The common method of enhancing the efficiency is given , such as decreasing the iron loss , copper loss and machine loss
   從降低電機(jī)的鐵耗、銅耗和機(jī)械損耗著手，給出了提高電機(jī)效率的一般方法。
2. It's difficult to find machine losses in a sentence. 用machine losses造句挺難的