structural performance deterioration

• 结构性能退化

structural performance deterioration的用法和样例：

例句

1. Long-term storage may result in poor lead solderability and degraded electrical performance.
   长期存储可能会导致管脚可焊性差和电气性能退化。
2. If valves are not put into service within three months after factory shipment, long term storage measures should be initiated to preclude valve deterioration.
   如果阀门在出厂三个月后没有使用，就应该开始采用长期储存方法，避免阀门性能退化。