翅

Any of various large insects of the order Odonata or suborder Anisoptera, having a long slender body and two pairs of narrow, net-veined wings that are usually held outstretched while the insect is at rest.

蜻蜓蜻蛉目或不均翅亚目中大型昆虫中一种，具有细长的身体，歇息时通常展开两对狭窄、有网状脉络的翅膀

In Part two, a brief researching history on Raphidioptera and Neuroptera are given.

第二部分：简要回顾了我国蛇蛉目和脉翅目化石的研究历史。

The biology, anatomy of adult, evolutionary history of fossil Raphidioptera and Neuroptera are reviewed.

概括了蛇蛉目和脉翅目的生物学、成虫解剖特征和演化史。

Three geological sections which fossil Raphidioptera and Neuroptera collected from are introduced.

介绍了3个新的蛇蛉目和脉翅目化石采集地质剖面。

Any of various noctuid moths of the genus Calocala,having brightly colored hind wings visible only during flight.

后勋绶夜蛾一种Calocala属夜蛾科蛾，有鲜丽的彩色后翅，在飞行时才能看到

Wings of nutlet ca. 1/2 as wide as nutlet or more; female inflorescence pedunculate.

约的小坚果的翅的宽是小坚果或更多的宽的1/2；雌花序有花序梗。

Branches usually pendulous in mature trees; wings of nutlet ca. 2 × as wide as nutlet

在成熟的乔木里，分枝通常下垂；小坚果的翅约2 *和小坚果一样宽 22 Betula pendula 垂枝桦

Fruit a nut or nutlet, winged or not.

果为一坚果或小坚果，与否具翅。

Nutlet compressed, usually with membranous wings.

小坚果扁平，通常有膜质的翅。

Leaves suborbicular; peduncle 3-4 mm; wings of nutlet ca. as wide as or slightly narrower than nutlet

叶近圆形；花序梗3-4毫米；小坚果的翅约和或比小坚果稍狭窄一样宽 31 Betula rotundifolia 圆叶桦

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。