In comprehensive improvement of loess plateau, we should persist in combination of tree-grass planting measures with engineering measures.
黄土高原的综合治理，必须坚持林草措施与工程措施相结合。
In comprehensive improvement of loess plateau, we should persist in combination of tree-grass planting measures with engineering measures.
黄土高原的综合治理，必须坚持林草措施与工程措施相结合。
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