喷气

These engines deal with larger comparative airflows and lower jet velocities than the pure jet engine, thus giving a propulsive efficiency (Part 21) which is comparable to that of the turbo-prop and exceeds that of the pure jet engine fig.

因而，其推进效率(第21章)与涡轮螺旋桨的相当，超过了纯喷气发动机的推进效率(图1-lO)。

The automatically alining assembly, together with the brush and the jet blower system, allows for the more tidiness and perfection of sheet paper pile up.

自动排齐装置配以毛刷及喷气吹风系统，使纸张堆叠更加整齐、完美。

The French shorts, which were first produced in St Tropez during the Seventies and quickly adopted by the jet set, have, once again, become the only beachwear for those in the know, who include Russell Crowe and Hugh Grant.

这种法国短裤，最早70年代在St Tropez生产，随后很快被乘喷气客机的富豪们所享用。同样地，也成了那些时尚达人唯一的沙滩装选择，这些人包括Russell Crowe和Hugh Grant。

Running back Curtis Martin of the Jets received two votes, while fellow backs Jerome Bettis of the Steelers and LaDainian Tomlinson of the Chargers each got one. So did Chargers quarterback Drew Brees.

喷气机队的跑锋科蒂斯·马丁得到两票，钢人队的跑锋杰罗姆·贝蒂斯和电光队跑锋的拉丹利尼亚·汤姆林森，电光队队的四分卫杜威·布里斯各得一票。

"But this is a case where slip checks wouldn't have prevented us from getting ," Callas told New Scientist.

喷气推进实验室的约翰·卡拉斯是&勇气&号和它的姊妹车&机遇&号的项目经理，他说：现在'勇气'号的处境非常艰难。

"Thisis a bolder, more aggressive objective than we have had before," saidJohn Callas, the project manager for both Mars rovers at NASA's JetPropulsion Laboratory in Pasadena, Calif. It's tremendously exciting.

&这是一个大胆，更积极的目标比我们不得不说，&约翰卡拉斯，项目经理两个火星探测器美国宇航局喷气推进实验室的科学家，加州这是非常激动人心的。

"This is the most serious embedding event that we've experienced on Mars for either rover," says John Callas, the rover project manager at NASA's Jet Propulsion Laboratory in Pasadena, California.

加利福尼亚州帕萨迪纳美国宇航局喷气推进实验室的火星车项目经理约翰·卡拉斯说：&这是至今为止我们的两个火星车在这颗红色行星上经历的最棘手的陷入问题。&

It was learned that contrails lower daytime and raise nighttime temperatures slightly in high-traffic jet corridors.

据了解，凝结白天低略有提高高流量喷气走廊夜间温度。

It is conservatively estimated to comprise some 2,500-3,000 companies at all levels of the supply chain, operating at all phases of the aerospace lifecycle, including: global manufacturers of large civil airliners, regional and business jets, and heli- copters; military combat, transport and training aircraft; and satellites and guided weapons.

据保守 估计，英国航空航天业由2500至3000家公司组成，囊括了整个供应链的所有层次，经营范围覆盖航空航天业生命周期的所有阶段，包括大型民用客机、地区和商务喷气飞机、直升机、军用战机、运输机和教练机，以及卫星和导航武器的全球制造商。

The intensity of a nearby jet taking off is about 110 decibels.

一架在附近起飞的喷气机的声音强度大约是110分贝。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。