balance of oxygen content

• 氧平衡

balance of oxygen content的用法和样例：

例句

1. The nanometer diamond produced by negative oxygen balance dynamite blasting method is a type of multi-phase carbon material probably containing impurity.
   负氧平衡炸药爆轰法制造的纳米金刚石是一种会有不同杂质的多相碳材料。