propellers

Stay away when the plane 's propellers are spinning .

飞机的螺旋桨在快速旋转时，要离得远一些。

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。

The rope fouled the propeller .

绳索缠住了螺旋桨。

The engine turned a propeller .

发动机使螺旋桨旋转起来。

With a low-pitched rumbling noise , the propeller began to rotate .

伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。

A rope jammed the boat 's propeller

一根绳子卡住了船的螺旋桨。

The freighter fouled its propeller in fishing nets .

货船的螺旋桨被渔网缠住了。

The propeller blade has been mounted .

推进器的叶片已经安装好了。

A : " What 's the purpose of the propeller ? "

A：飞机的螺旋桨有什么用？

The propeller started to spin around .

螺旋桨开始飞快地旋转起来。

The timing of the gun was precisely synchronized with the turning of the plane 's propeller .

风门的调速与飞机螺旋桨的转动精确同步

The engine reciprocates the propeller .

引擎往复推动螺旋桨

The design of propeller is a very important part of ship design .

螺旋桨设计是船舶设计中重要的组成部分。

Research of a Novel Marine Propeller Characteristic Real-time Simulation System

新型船用螺旋桨特性实时仿真系统研究

A study about parameters selection for hydraulic model design of propeller pumps

轴流泵水力模型设计参数选择的研究

Research on Closed Loop Control of Torpedo Heat Engine Propeller System

鱼雷热动力推进系统的闭环控制研究

Some problems of propeller design for high speed ship

高速船螺旋桨设计若干问题

Private Enterprises : the Propeller of the Development of the West Economy

民营经济：西部经济发展的助推器

Study on the Jet Propeller Power System of the Engineering Dredger

工程清淤船喷射推进动力系统研究

Research on Pulse Plasma Propeller Model in Water Medium

水介质中脉冲等离子体推进模型的研究

How to Improve Installation Efficiency of Large and Medium Propeller Pump

浅谈提高大中型轴流泵装置效率

Theoretical analysis and experiments have been done for the propeller regulating system .

对该螺桨调速系统进行了理论分析和实验研究。

Application of images processing in propeller blades stress distribution experiment

图像处理技术在桨叶表面应力分布试验中的应用

Optimization Design of Cleaning Plant for Propeller on Water

螺旋桨水上清洗装置的优化设计

Analysis on different treatments of boundary condition for propeller design based on lifting surface theory

螺旋桨升力面设计边界条件的处理分析

Thick Shell Element Method of Stress Analysis of Propeller Blades

螺旋桨桨叶固有动力特性方法研究螺旋桨强度的厚壳元分析

Prediction of Unsteady Pressure Distribution on Surface of Propeller by Surface Panel Method

面元法预报螺旋桨表面非定常压力分布

State-of-the-art of new counter - rotating propeller development in the world

国外新型对转螺旋桨系统研制现状

SPECIAL EQUIPMENT - A New Device for Testing the Propeller in Oblique Flow

螺旋桨斜流试验装置

Advantage and Application of Large Diameter and Slow Turning Screw Propeller

大直径低转速螺旋桨的收益及其应用