So it is hoped that one kind of economic and utilitarian compaction meter can be investigated, and this is also the starting point of the article.
因此,希望能够研究一种经济、实用的检测压实度的仪器,这正是本文研究的出发点。
So it is hoped that one kind of economic and utilitarian compaction meter can be investigated, and this is also the starting point of the article.
因此,希望能够研究一种经济、实用的检测压实度的仪器,这正是本文研究的出发点。
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