key condition

• 关键条件

key condition的用法和样例：

例句

1. Intensity of reworking is a key factor for formation of large and superlarge gold deposits ingreenstone belts and metamorphosed microclastic rocks of China.
   改造强度是形成中国绿岩带及变质细碎屑岩系中大型及超大型金矿床的关键条件。