发起一场全国性的做某事的运动 percentage of forest cover 森林覆盖率 the forest coverage rate 森林覆盖率 ..
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percentage e of forest cover 森林覆盖率
·2,447,543篇论文数据，部分数据来源于NoteExpress
Percentage of forest cover in different historic periods of china.
中国历代森林覆盖率的探讨。
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The percentage of forest cover and forest area in our country improved continuously, especially the area of plantation forestry.
我国森林覆盖率和森林面积特别是人工林面积持续提高。
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