yield degradation

• 成品率降低

yield degradation的用法和样例：

例句

1. A coarser grade of iron will lower the yield of ferrocene.
   粗粒的铁将降低二茂铁的产量。
2. Slow degradation of ground water quality may result from repeated use.
   循环使用地下水可以导致缓慢的水质降低。