螺旋桨

However, problems did exist in the area of the drive shaft which drove the rear propeller.

然而，它仍旧存在传动轴驱动尾部螺旋桨的问题。

Few things sound as sexy to me as the throaty roar of an old propeller-driven fighter plane.

几件事听起来性感，我作为throaty轰鸣声一岁的螺旋桨驱动的飞机。

Everyone started looking up and we could see the side propeller or engine was on fire.

每个人都开始象天空寻找，我们可以看到一侧螺旋桨或发动机着火了。

A new bionics propulsion equipment—fishlike flexible tail fin propulsion equipment is brought forward,because there are some problems in present thrusters,such as big noise,low propulsion efficiency in shallow water and evident wake.

本文针对现有船用螺旋桨、泵喷等常规推进器存在噪音大、浅水中船舶推进效率不高以及尾迹明显等缺点，提出一种新型仿生推进装置—仿鱼尾柔性尾鳍推进装置，并据此展开了对单翼板柔性尾鳍和双翼板柔性尾鳍模型的计算和实验研究，本文工作属于鱼类生物流体力学、机械学、材料学和控制技术等多学科交叉的一个新兴研究领域。

The bacterial flagellum consists of about 40 different protein parts, including a stator, rotor, drive shaft, U-joint, and propeller.

细菌鞭毛由大约40个不同的蛋白质组成，包括定子，转子，驱动轴，U型关节和螺旋桨。

Having the chords of propeller blades parallel to the line of flight.

螺旋桨边缘弦的。

These new surface-piercing propellers are engineered to operate with speed and efficiency using full-size boat technology.

这些新的表面刺破螺旋桨的设计与操作速度和效率使用全尺寸船技术。

A man had bolted a go-cart engine and a propeller to the back of a hang glider, and there he was, running off flat ground and cruising into the sky just like a bird.

一个人预先将轻便车发动机和螺旋桨捆到悬挂式滑翔机的后部，他准备就绪，接着在乎地上迅速奔跑，然后像鸟一样盘旋上天。

In the first part, first, the operational principle of Varivec Propeller is explained. Secondly, the mathematical model for predicting longitudinal and transverse movement hydrodynamic characteristics of Varivec Propeller under steady or unsteady condition are present, based on the general propeller lifting-surface theory, potential flow theory and Green theorem. Thirdly, theoretical calculation methods for predicting hydrodynamic characteristics when the influence of paraboloidal boss on the performance of Varivec Propeller is or isn't considered are present, based on The finite basic solution method, the unsteady vortex lattice method and Hess-Smith method Different rake angle is adopted according to different desire in practical application.

在理论计算部分，本文首先给出了全方向推进器的工作原理，然后基于常规螺旋桨升力面理论、势流理论和格林定理建立了定常和非定常状态下全方向推进器纵向、横向运动的水动力性能计算的数学模型，并利用有限基本解法、非定常涡格法和Hess-smith方法分别对考虑和不考虑桨毂影响时的全方向推进器纵向、横向运动水动力性能进行了数值预报。

Hanno shows you how to tackle this project with a Parallax Propeller, a handy design kit, and an inexpensive camera.

Hanno告诉你如何利用一个视差螺旋桨、一个方便的设计套件以及一个廉价的摄像头来处理这个工程。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。