名词
中文翻译：木髓
同义词：
['xylem', 'vascular tissue']
例句：
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1.The tree's xylem is essential for its survival.
这棵树的木质部对其生存至关重要。
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2. The vascular tissue of the plant is responsible for transporting water and nutrients.
植物的维管组织负责运输水分和养分。
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3. The meristematic cells are in a state of division and growth.
处于分裂和生长状态的细胞是形成层细胞。