本文基于对云南富宁县播区的详细调查，得出了该县飞机播种造林成效及其原因。
Based on the detailed investigation in Funing County, Yunnan province, the authors discuss the effect of afforestation by planes and its reason.
本文基于对云南富宁县播区的详细调查，得出了该县飞机播种造林成效及其原因。
Based on the detailed investigation in Funing County, Yunnan province, the authors discuss the effect of afforestation by planes and its reason.
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