For complete decomposition of sample, only 1-2hrs are necessary.

平均每个样品只需1—2小时即可分解完全。

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At last, the decomposition of pig iron sample and the pretreatment method were studied.

最后研究生铁样品处理及分解方法。

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At last, the decomposition of pig iron sample and the pretreatment method were studied.

最后研究生铁样品处理及分解方法。

youdao