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单词 Psilotaceae
释义 psi·lo·ta·ce·ae AHDˌsīlōˈtāsēˌē
基本英英例句
n.松叶蕨科¹⁰⁰

Noun:
small family of lower ferns having nearly naked stems and minute scalelike leavesStudies on the Spores Morphology ofPsilotaceae松叶蕨科植物孢子形态的研究
comprising the familyPsilotaceaeor Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs.由松叶蕨科或裸蕨纲组成;无根脉管植物,叶仅部分分化或缺乏,孢子囊发育较差。
whisk ferns; comprising the familyPsilotaceaeor Psilotatae: vascular plants with no roots,partial if any leaf differentiation,and rudimentary spore sacs蕨类植物;由松叶蕨科或裸蕨纲组成;无根脉管植物,叶仅部分分化或缺乏,孢子囊发育较差
whisk ferns; comprising the familyPsilotaceaeor Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs.蕨类植物;由松叶蕨科或裸蕨纲组成;无根脉管植物,叶仅部分分化或缺乏,孢子囊发育较差。
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