在1960和1970年代，大部分个人和企业的飞机是飞行高度低于喷气式飞机的螺旋桨式或涡轮螺旋桨式飞机。
In the 1960s and 1970s, most personal and corporate planes were propeller or turbo-prop aircraft, which fly at a lower altitude than jetliners.
那么其他的一些飞行器，比如说直升飞机，螺旋桨飞机，他们没有喷气式引擎，可以在这种条件下飞行吗？
So can other aircraft, such as helicopters or prop-planes that don't have jet engines, fly through these conditions?
俱乐部的墙上满是波兰飞行员的黑白相片，还有一个喷火式战斗机的巨大螺旋桨悬挂在一面墙上。
The walls of the club were covered with black-and-white photos of Polish pilots, and a huge propeller from a Spitfire was fixed to one wall.
提高高旁通飞机引擎的方法之一就是把风扇变成开放式旋翼，有点回归于螺旋桨的味道，但要使用两圈粗短的反旋桨叶。
One way to increase the efficiency of a high-bypass jet engine is to turn the fan into an open rotor, a bit like returning to propellers, but using two rings of stubby counter-rotating blades.
轻型涡轮螺旋桨攻击机的经济性不仅比喷气式战斗机优越，与武装无人机相比也毫不逊色。
It is not only jets that light-attack turboprops can outperform. Armed drones have drawbacks, too.
军事技术：出于各种原因，小型、低速，但花费要少得多的螺旋桨飞机开始取代昂贵的喷气式战斗机。
Military technology: Small, slow but much less costly, propeller-driven planes are starting to displace fancy fighter jets, for a variety of reasons.
它使用一个安装在后面的推进式螺旋桨并有一对一上一下反向旋转的主旋翼。
The X2 uses a pusher propeller mounted at the rear and has a pair of contra-rotating main rotors, one positioned above the other.
至少根据曾在20世纪70年代驾驶涡轮螺旋桨飞机完成在柬埔寨的战斗任务力德先生所言，涡轮螺旋桨飞机比起喷气式战斗机还有另一个好处。
And there is one other advantage that the turboprop has over the jet, at least according to Mr Read-who flew turboprops on combat missions in Cambodia during the 1970s.
Lange的Antares20e是单座可带伸缩螺旋桨式滑翔机，由40千瓦电动机驱动，并在机翼前缘装有72个锂电池。
Lange's Antares 20e is a single-seat glider with a retractable propeller powered by a 40kw electric motor and 72 lithium-ion cells mounted in the leading edges of its wings.
航空业的革新集中于民用航空喷气式发动机的研发，首先是涡轮螺旋桨发动机，后来是纯粹的喷气机。
Innovation in aviation has centered on the development of the jet engine for civil use, first in a turbo propeller form and later as a pure jet.
航模、无人驾驶侦察机和靶机等飞行器经常采用带螺旋桨的活塞式小型动力装置。
Minitype power unit with diesel and propeller is widely used in aviation model, unmanned scout and target drone.
在螺旋桨式风机的静压曲线中存在着不稳定区域或断点。
There is always an unstable region or break in the static pressure curve of a propeller fan.
然后着重分析吊舱式电力推进系统的两个重要组成部分：螺旋桨和推进电机。
Secondly this dissertation analyses two important parts-the screw propeller and the propulsion motor.
飞机各种能够飞行的带翼交通工具，通常比空气重，用喷气式发动机或螺旋桨驱动。
Any of various winged vehicles capable of flight, generally heavier than air and driven by jet engines or propellers.
研究结果表明，传统的估算方法对于装小型活塞式发动机的螺旋桨飞机也是适用的。
The result shows that the traditional estimation methods about powerplant performance are adapted for propeller aircraft even if with small sized piston engine and propeller.
本文运用可靠性设计理论分析了螺旋桨式搅拌机链传动失效的原因，并提出了相应的改进方法。
The reason that propeller mixer chain lost efficacy was analyzed by the reliability design theory, and some advices were given in this paper.
三刀刃综合经驱动器螺旋桨展开之间的两半，其翻盖式枢纽的地位和初步的叶片角度定。
The three bladed Warp Drive composite propeller was mounted between the two halves of its clamshell hub and the initial blade Angle was set.
小型螺旋桨飞机的动力装置一般由活塞式发动机和螺旋桨两个主要部分组成。
The powerplant of propeller aircraft is composed of two main parts, piston engine and propeller.
经过四个月的飞行训练，威廉王子学会驾驶螺旋桨式飞机和直升飞机。他是英国王室中成为皇家空军飞行员的第四代成员。
He learnt how to fly propeller-powered planes and helicopters and is the fourth generation of British royals to become an RAF pilot .
螺旋桨通过使用船厂提供的液压顶升装置压入螺旋桨轴并采用湿式无键固定法紧固。
The propeller is to be force fitted to the propeller shaft by using the hydraulic jack which the Builder possess and secured by wet type keyless fitting method.
本文提出拖式吊舱螺旋桨(螺旋桨位于吊舱首部)定常水动力性能的势流理论计算方法。
A numerical method based on the potential flow theory is proposed in this paper for predicting the steady performance of tractor-type podded propellers.
本实用新型就是提供一种可有效延迟空泡的分离，并可延长螺旋桨桨叶使用寿命的截面拱度比非线性分布式船用螺旋桨。
The utility model provides a cross section camber ratio nonlinear distributed Marine propeller which can effectively delay the separation of the cavity bubble, and prolong the service life thereof.
“高速”型的现代水平轴风力涡轮机，如用于大规模发电的那种，一般包括两个或三个直径为100米或更大的螺旋桨式叶片。
Modern horizontal axis wind turbines of the "high-speed" type, as used in large scale power generation, typically include two or three propeller-style blades with a diameter of 100 meters or more.
本文提出的变磁阻式螺旋桨动力仪除用于水面船模试验外，并可用于水下模型及多桨轴模型试验。
The R. P. D. is presented in this paper. Except the usual ship model test, it is possible to carry out measurement of tests for the underwater model and multi-propeller shaft model.
本文提出的变磁阻式螺旋桨动力仪除用于水面船模试验外，并可用于水下模型及多桨轴模型试验。
The R. P. D. is presented in this paper. Except the usual ship model test, it is possible to carry out measurement of tests for the underwater model and multi-propeller shaft model.
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