与老式螺旋桨发动机的叶片不同，这些叶片在发动机的后部旋转。
Unlike the blades on old-fashioned propeller engines, these blades spin around at the back of the engine.
推进器是由火箭发动机提供的，而不是螺旋桨和方向舵，这使得转向变得困难。
Propulsion is provided by a rocket engine, rather than a propeller and rudder, which makes steering difficult.
其设计特点主要包括超安静涡轮螺旋桨发动机，真实视觉窗户，动力为0.55马赫，最大航程为800海里。
It features ultra-quiet turboprop engines, virtual reality windows and is designed to fly at Mach 0.55 for 800 nautical miles.
一份被当地警方贴在船上的警告标明“注意：不要认为螺旋桨被拴就可以随便发动引擎。”
A warning posted by the bailiffs on the boat reads: "Important: Do not turn on the motors, considering that the propellers are chained."
飞机采用非气密舱和四台动力不足的涡轮螺旋桨发动机，使它仅仅适用于低-中空飞行。
The aircraft has an unpressurised cabin and four underpowered turboprop engines, making it only suitable for low- to medium-altitude flight.
一个涡桨可以比其他的飞机发动机多处理一些气流，因此在低速时，无论给定的燃料占总量的比例是多少，都会产生最大的推力。
A turboprop handles a larger airflow than any other aircraft engine and so (at low speeds) generates the largest thrust for any given rate of fuel consumption.
该船的主机为单作用，二冲程，带涡轮增压器的十字头柴油发动机，并且螺旋桨为定距桨。
The vessel to be propelled by a single-acting two stroke supercharged cross head Diesel engine, acting to a fixed pitch propeller .
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.
即使有一个好的发动机，如果没有合适的螺旋桨来带动，飞机的性能也会大打折扣。
Even if has a good engine, if does not have the appropriate propeller to lead, the airplane performance also can sell at a discount greatly.
但由于无尾桨系统要耗费更多的发动机功率，性能表现不好。
But the performance is poor because requires more power from the engine.
每台发动机有它螺旋桨适当的范围。
涡轮螺桨发动机的无因次性能参数是三个变量的函数。
The"non dimensional"engine performance parameter of turbo propsis a function of three variables.
汽油发动机供能后，螺旋桨便旋转起来，这就使气箱内布满了空气。
The gasoline engine supplies power that causes the propeller to whirl. This fills the chamber with air.
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.
空气螺旋桨是把航空发动机的动力转化为飞行器推进力的工具。
Air propeller is the tool which transforms the power of aerial engine to the thrust of aircraft.
首先是匹配的螺旋桨发动机。
有时，飞机的螺旋桨会把大量的飞虫吸到发动机里。
Sometimes, a plane's propeller pulled masses of flying insects into the engine.
阐述了螺旋桨和发动机转子转动惯量的计算方法，由进动产生的附加力矩或角速度的计算方法。
It sets forth the computing method of rotor moment of inertia of the propeller and engine as well as the computing method of additional moment or angular velocity produced by precession.
涡轮喷气发动机和涡轮螺桨发动机更适用于飞机。
The turbojet and the turboprop are much more satisfactory for airplanes.
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.
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.
发动机使螺旋桨旋转起来。
的表载列螺旋桨负荷值可用于比较不同直径和可调桨，以他们的负载对发动机。
A table containing values of propeller load can be used to compare propellers of varying diameter and pitch, as to the load that they impose on the engine.
人们很容易适应斯特林发动机船，但推进力是低于螺旋桨。
It is easy to adapt to the Stirling engine boat, but the propulsive force is lower than that of the screw propeller.
本文简要叙述涡轮螺旋桨发动机——WJ9的主要技术途径，同时对该发动机的研制经验作了综合评价。
The paper describes in brief the principal technical approach in design and development process of a new turboprop engine WJ9, and the synthetical appraisal of the project experience is also made.
设计并安装了专用的齿轮箱试验台，并在台架上进行了模拟发动机与螺旋桨扭振激励状况下的试验。
A special gearbox test device was made to simulate the excitation of the engine and the propeller.
本文尝试开发的发动机台架，不仅具有常规功能，而且具有模拟螺旋桨特性加载的功能。
This paper presents a calculating method based on the hull-engine-prop relations, apply capability curve of prop to determine the maximum speed of towing vessel.
本文尝试开发的发动机台架，不仅具有常规功能，而且具有模拟螺旋桨特性加载的功能。
This paper presents a calculating method based on the hull-engine-prop relations, apply capability curve of prop to determine the maximum speed of towing vessel.
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