Soil conservation work has been greatly speeded since the conference.

会议召开之后，水土保持工作大大加快了。

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What is the best method of soil sampling for research work?

我们的研究中，最佳的采样方法是什么？

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To work in this soil "was very special."

在这样的土壤里耕种“非常特殊。

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To work in this soil "was very special."

在这样的土壤里耕种“非常特殊。

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