The middle portion of the digestive tract of certain invertebrates,such as arthropods,lined with an enzyme-secreting tissue and serving as the main site of digestion and absorption.
英
美
释义
中央管某些无脊椎动物,如节肢动物消化管的中央部分,上面布有分泌酶的组织,为消化和吸收的主要部位。
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