We have a representative sample.
我们有一个代表性的样
。
We have a representative sample.
我们有一个代表性的样。
For the purpose of the development and utilization of the argilla re sources in Huaibei, the activation of coal-argilla taken from Zhuzhuang coal mi ne was studied as representative sample.
发利用淮北矿区
岭
资源,以该区朱庄
矿
岭代表样进行岭的活化研究。
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