... 四分周干围 quarter-girth 四旁植树 four-side tree planting 四氢枞酸 tetrahydroabietic acid ...
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人工造林面积、森林覆盖率和林业用地面积平稳上升，但四旁植树株数下降幅度较大。
The area of artificial forestation, forest cover rate and forestry land were increasing steadily, but trees along the road and field were reducing greatly.
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四旁植树是路旁、沟旁、渠旁和宅旁进行植树的总称。
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