用于飞行的

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 fore wings 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

The gun's rounds are about the same size as a .30-06 hunting rifle's, and it is capable of firing only where the V-22 has been — not where it's going — and only when the ramp used by Marines to get on and off the aircraft is lowered.

这杆枪的射程大致和。30-06的狩猎来福枪相当，并且它只能在V-22所在的地方——不是飞行通过的地方——同时只有在升降板被放下以用于陆战队员们上下飞机时才能够射击。

He and his team believe the design principle could be used to make long term, self-repairing robots that could mend themselves and be used in hazardous situations and on space flights.

他和他的研究小组相信，该设计原理可用于制造长期的可自我修复的机器人。这种机器人可以进行自我调整，可应用于危险环境下和太空飞行中。

We are the first in China to apply the recent " universal variables " concept to the orbit designing of deep space probe .

给出了利用普适变量法来求解飞行时间，开普勒问题和高斯问题的计算方法，将这些方法用于深空探测器的轨道设计，针对不同要求提出了 3种改进设计的方法，对每种方法的适用范围进行了详细的分析。

Swallow Any of various small, graceful, swift-flying passerine birds of the family Hirundinidae, having long, pointed wings, a usually notched or forked tail, and a large mouth for catching flying insects and noted for their regular migrations in large numbers, often over long distances.

燕子：燕科体小、优美且飞行快疾的燕雀类小鸟，具有长而尖的翅膀、通常为V形或叉形尾巴和用于抓飞虫的大嘴，并因它们长距离的规律性集体大迁徙而闻名

Any of various small, graceful, swift-flying passerine birds of the family Hirundinidae, having long, pointed wings, a usually notched or forked tail, and a large mouth for catching flying insects and noted for their regular migrations in large numbers, often over long distances.

燕子：燕科体小、优美且飞行快疾的燕雀类小鸟，具有长而尖的翅膀、通常为V形或叉形尾巴和用于抓飞虫的大嘴，并因它们长距离的规律性集体大迁徙而闻名 Any of various similar birds， such as a swift。

Its stealth and supersonic speed allow the Lightning II to fight in high-threat environments that the slower, unstealthy A-10s cannot survive. The F-35 also will be dispatched to low- and medium-threat theaters.

它的隐身及超音速飞行能力使得闪电II可以在低速、无隐身能力的A-10战机所不能生存的高威胁环境下作战。F-35同样可以用于应对中、低威胁程度的战场环境。

NASA successfully demonstrated an alternate system for future astronauts. The launch of the Max Launch Abort System, or MLAS, took place on July 8, 2009, at 6:26 a.m. at NASA's Wallops Flight Facility, Wallops Island, Va.

2009.7.8早晨6：26，弗吉尼亚州的瓦勒普岛、美国宇航局的瓦洛普飞行中心，NASA成功演示了用于未来太空发射任务的替代性系统——最大发射失败救援系统，简称MLAS。

A swallow is a small, graceful, swift-flying bird with long and pointed wings.

燕子体小、优美且飞行快疾，具有长而尖的翅膀、V形或叉形尾巴和用于抓飞虫的大嘴，并因它们长距离的规律性集体大迁徙而闻名。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。