imperfect

不完善的，有缺点的

【例】The equipment failed to give proper performance because of imperfect design.

该设备由于设计上有缺陷，达不到应有的性能。

implement

履行，实现

【例】Our corporation always faithfully implements all the stipulations of our contracts.

我公司始终严格履行各项合同条款。

implementation

履行，实现

【例】Instructions have been given to the relevant departments to assure thorough implementation of the S/C.

我们已关照有关部门保证全面执行销售确认书各条款。