名词
中文翻译：原生木质部空隙同义词
同义词：
['protoxylem gap', 'protoxylem cavity']
例句：
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1. The plant's protoxylem lacuna is filled with water and nutrients.
这株植物的原生木质部空隙充满了水和养分。
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2. The protoxylem lacuna in the tree trunk is where the roots grow.
树干中的原生木质部空隙是根生长的地方。
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3. The protoxylem lacuna is a crucial part of the plant's structure that allows for water and nutrient transport.
原生木质部空隙是植物结构中至关重要的部分，它允许水分和养分的运输。