insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing
双语例句
1. The mode of action of precocene on ovarian development of dipteran insect is discussed.
本文还对早熟素作用于双翅目昆虫的方式作了讨论。
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2. The mode of action of precocene on ovarian development of dipteran insect is discussed.
