英语语法分析

Both the surface activates exposed in air and their oxygen consumption rate are different due to the different oxidizability of sulfide ores.

由于不同类型的硫化矿石氧化性不同，暴露在空气中的表面活性不同，其耗氧速率也不同。

The effects of oxidizability, the adding amount of promoter and the proportion between the promoters on the characteristics of the catalyst are investigated.

考察了氧化程度、助剂加入量以及助剂之间的比例对催化剂性能的影响。