allowable defect

例句：

1. 1. The manufacturer has to allow a certain amount of defects in the product for safety reasons.
   制造商为了安全原因必须允许产品有一定的缺陷。
2. 2. The software is not allowed to contain any defects that could cause system failures.
   软件不允许含有任何可能导致系统故障的缺陷。
3. 3.The engineer carefully inspected the machine to ensure that there were no allowable defects before it was put into use.
   工程师仔细检查了机器，确保在投入使用前没有可接受的缺陷。