名词
中文翻译：基部直径
同义词：
['base diameter', 'root diameter']
例句：
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1.The tree's basal diameter is 2 meters.
这棵树的基部直径是2米。
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2. The roots of the plant are responsible for absorbing water and nutrients from the soil.
植物的根负责从土壤中吸收水分和养分。
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3.The growth of the plant is limited by its basal diameter.
植物的生长受到其基部直径的限制。