oxides are

oxides are 基本解释

氧化物是

oxides are 用法和例句

1、Niobium oxides are favorable promoter and Support.

铌氧化物是优良的促进剂和良好的载体。

2、Sulfur dioxide and nitrogen oxides are the main gas emissions of the smoke and waste gas.

二氧化硫和氮氧化物是烟气的主要气体排放物。

重点词汇

oxides n. 氧化物( oxide的复数形式 )