制造商因货物有缺陷召回了这批产品。

The manufacturer recalled the batch due to ___defective goods.

旧楼里的电气安装是有缺陷的。

The electrical installations in the old building are ___defective.

调查显示，安全机制从一开始就有缺陷。

The investigation revealed that the safety mechanism was ___defective from the outset.