名词
中文翻译：次生脉
同义词：
['metamorphic vein']
例句：
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1.The metasomatic veins are responsible for the growth of new tissues in the body.
次生脉负责身体新组织的生长。
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2.The metasomatic veins play a crucial role in the development of the nervous system.
次生脉在神经系统的发展中起着关键作用。
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3. During embryonic development, the metasomatic veins form the primitive blood vessels.
胚胎发育期间，次生脉形成原始的血管。