The groups with fore and hind wings both developed have no wing-coupling apparatus.
前后翅均发达，都是飞行器官的类群无连锁器。
They are also unique among flying insects because their fore wings partly overlap their hind wings.
它们的部分前翅是覆盖在后翅上的，这在能飞的昆虫中是独一无二的。
He thinks microraptor used its hind wings only for gliding, folding them out of the way for powered flight.
他认为，顾氏小盗龙仅仅用后翼来滑翔，在加力飞翔时，便折叠起来，以免挡道。
Either of the leathery or chitinous forewings of a beetle or a related insect, serving to encase the thin, membranous hind wings used in flight.
鞘翅甲虫或其它相关的昆虫的一对坚韧的或几丁质的前翅，用于保护飞行中薄的、膜状的后翅。
Either of the leathery or chitinous forewings of a beetle or a related insect, serving to encase the thin, membranous hind wings used in flight.
鞘翅甲虫或其它相关的昆虫的一对坚韧的或几丁质的前翅，用于保护飞行中薄的、膜状的后翅。
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