propellers

The calculation and the full scale test show that it becomes feasible for river ships to use tandem propellers on the channels with shallow water and many shoals and rapids.

计算及实船试验表明：在水浅、流急、滩多的内河航道上，船舶采用串列螺旋桨，是现实可行的较好的推进方式之一。

Each engine has a range of propellers appropriate for it.

每台发动机有它螺旋桨适当的范围.

Would you care to explain how l started the propellers with Guido in the room?

那你可以解释当圭多在房间的时候我是如何发动螺旋机的?

The configuration has two tractor propellers, full-span double slotted flaps deflected 45, and a high tail.

实验模型有二两拉力螺旋桨, 全翼展双缝襟翼偏转45, 并有高置的水平尾翼.

A simplified theoretical method for calculating tandem propellers is presented in this paper.

本文提出了一个串列螺旋桨的简化理论计算方法。

Preliminary modelling of line spectrum for radiated noise induced by high speed counter rotation of underwater vehicle propellers

浅析水下高速航行体对转螺旋桨辐射噪声线谱建模

The spinning of the propellers generates the necessary lift , or upward force, to raise the platform.

螺旋推进器快速旋转,生成必要的上升力, 使平台升起.

Ericsson began the construction of screw propellers in a bathroom.

埃里克森在浴室中开始制作螺旋桨.

The long-range electric torpedo homes in on the noise of the target ship's propellers.

远程电动水雷顺着目标船的螺旋浆的声音进行追踪。

With lift fans for air supply and aerial propellers in propulsion simultaneity, the whole power system of Air-Cushion Vehicle becomes more complicated.

气垫船动力系统增加了为气垫供气用的垫升风机，同时采用空气螺旋桨推进，整个动力系统设计复杂。

But all these concepts are massively expensive, require safety certification standards for road and air, need dual controls, involve complex folding wings and propellers, and have to be flown from air-strips.

但要实现所有这些概念花销巨大，需要陆上和空中的安全认证标准，需要双重控制，需要复杂的折叠机翼和螺旋桨，还得从飞机跑道起飞。

They have stopped making one-engine airplanes driven by propellers.

他们已经不再生产单引擎的由螺旋桨驱动的飞机了.

The plane is an eight-seater with twin propellers.

这架飞机有8个座位，靠双螺旋桨推进。

This paper presents the results and analyses of open water tests of tandem propellers in a nozzle of accelerating flow type.

本文叙述了加速导管中串列螺旋桨敞水试验结果及分析。

The Preliminary Application of Tandem Propellers to River Ships

串列螺旋桨在内河船上的初步应用

As the executive body of DP system, the propellers receive the thrust commands generated by the thrust allocation logic ( TAL) and act correspondingly to keep the vessel in the set point.

推进器是动力定位系统的执行机构，其接受推力分配逻辑产生的推力指令，做出相应的动作（转速、方向等），从而实现动力定位的功能。

These little spring-powered propellers would fly like modern-day helicopters.

这些小小的弹簧动力推进器飞起来就跟现代的直升飞机一样.

Some drawings predicted the coming of propellers and helicopters.

一些图样还预示了螺旋桨和直升机的发明.

Such propellers as we have recently designed for small ships are actually modelled on fish tails.

象我们近来为小船设计的那样的螺旋桨实际是模仿鱼尾制造的.

The tunnel's propellers and fan motors were situated in the exit cone, seen here during construction.

风洞的螺旋桨和风扇马达坐落在出口锥, 在施工期间出现在这里.

a ship with twin propellers

有双螺旋桨的船

The propellers produced by this company are quality-guaranteed.

这家公司生产的推进器质量值得信赖.

The Theoretical Calculation of the Velocity Field of Wakes of Ship's Propellers

船舶螺旋桨后尾流速度场理论计算

The water was thrashing and churning about under the propellers.

水在螺旋桨下面打旋、翻滚.

The fluctuation pressure and noise of these propellers were measured as well in modeling wake field of large cavitation tunnel.

在大型空泡水筒中的模拟伴流场中分别对这三种形状叶梢的螺旋浆模型进行了高负荷水动力时的脉动压力和噪声测试。

A simplified theoretical method for calculating tandem propellers

串列螺旋桨的简化理论设计方法

The ship's propellers churned the waves to foam.

轮船的推进器将海浪搅出泡沫.

Wartime production of anti-aircraft guns, fighter wings, propellers and mortars.

在战争期间生产过飞机部件, 战斗机机翼, 螺旋桨等.

The ship's propellers churned up the water as it increased speed.

轮船加速时,螺旋桨转动,浪花翻滚.

The two counter-rotating tandem propellers provide a simple means to enhance yaw control, which is particularly important in vertical flight.

而机上安装的一对反向旋转的螺旋桨则起到了至关重要的作用。