所有化妆品都含有化妆品所需的标准成分。
所有化妆品都含有化妆企貔需的标准成分。
根据煤灰化学成分分析结果,参照矿物标准成分推算各矿物相在煤灰中的含量。
Based on the results of chemical analysis of the coal ash, with reference to the standard composition of minerals the content of various mineral phases in the coal ash has been determined.
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