专题类：金属氧化物。
Carbon combines with oxygen to form carbon oxides.
碳与氧化合后便构成碳氧化合物。
Carbon combines with oxygen to form carbon oxides.
碳同氧化合形成多种氧化碳。
However, the contents of the oxides change little.
氧化物含量变化范围小。
It also makes study on the preparation condition of compound oxides.
同时对复合氧化物的制备条件进行了探讨。
It also makes study on the preparation condition of compound oxides.
同时对复合氧化物的制备条件进行了探讨。
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