source of damage

• 损坏原因,事故原因

source of damage的用法和样例：

例句

1. Some improvements of the slippage systems of the daiphragm meter pumps were made based on the damage causes of the daiphragm sheets.
   在分析隔膜式计量泵隔膜片损坏原因的基础上，对该泵的补油系统进行了改进。