Cement clinker of green colour can be obtained by using chromium oxide am a colorant.

以氧化铬作为着色剂，可以烧成绿色水泥熟料。

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Cement clinker of green colour can be obtained by using chromium oxide am a colorant.

以氧化铬作为着色剂，可以烧成绿色水泥熟料。

youdao