推进器

The cover of the back pack was built using an external fuel tank of a 1:48 F-18 jet fighter.

脚前四个推进器的外部则以热软胶板而压出来的；见图。

Archimedes Screw: A spiral propeller with a fixed axle at the centre invented by ancient Greek man Archimedes.

阿基米德螺旋：它是古希腊的阿基米德发明的固定于轴心的螺旋推进器。

The propeller on the back of a motor boat does not have to deal with Brownian motion.

而汽艇后面的推进器则不受布朗运动的影响。

As a graduate assistant at Caltech in the late 1930s, Mr.

20世纪30年代后期，作为加州理工学院的研究生助理，钱先生对火箭推进器进行了开创性研究。

The two steady operation conditions of Carrousel oxidation ditch and the unsteady flow field in the period of turning on/off aerator were determined and analyzed.

对 Carrousel 氧化沟2种稳态工况和曝气机启/停阶段非定常流场进行了测定与分析，结果表明：在开启2台曝气机的条件下，外沟流动缓慢造成推进器前区段易发生污泥淤积；而内沟较高的水动能有利于防止污泥沉积。

The 150 passenger catamaran alaskan Dream is the largest craft so far to be propelled by Hamilton water jets.

载客150人的双体客轮"阿拉斯加之梦"是目前使用哈密尔顿喷水推进器的最大的轮船。

Finally, this paper analyzes how to improve propulsive efficiency from the viewpoint of structure design of the caudal fin propulsor.

最后从尾鳍推进器的结构角度分析了如何提高推进效率。

The Center of Pressure, due to the propulsion of air, is approximately at the bottom of the ducts.

该中心的压力，由于推进器的空气，大约是底部的管道。

By analyzing and handling the experiments results, we obtained the rules of change of hydrodynamic characteristics of the cycloidal propeller in the pitch ratio varying from 0.2π to 0.75π and the steering angle varying from -90°to 90°, such that a foundation has been laid for using it in practice, and for setting up the theoretical calculation method of cycloidal propeller.

一、通过分析摆线推进器的工作原理，设计并加工了实验模型和实验装置，在哈尔滨工程大学船模水池对该模型进行实验，经过合理的理论分析和数据处理，获得了螺距比从0.2π到0.75π，方向角从-90°到90°范围内的水动力变化规律，为建立摆线推进器水动力性能理论计算方法和工程应用奠定了基础。

In cooperation with the serial NSPO sounding rocket programs and application of the research results of the Institute of Aeronautics and Astronautics, National Cheng Kung University in the current proposal, we propose a series of Indigenous Propulsion Experiment payload Onboard Sounding Rockets, including: hydrazine monopropellant, hydrogen peroxide monopropellant, micro-propulsion and bipropellant subsystem. In the first stage of this multiple-year project, in two years (2005/4/1~2006/12/31) with two phases (phase I: 2005/1/1~2005/6/30 and phase II: 2005/7/1~2006/12/31) we will be compliant with the NSPO sounding rocket launch schedule of 2006 and develop the hydrazine thruster system onboard the sounding rocket as the payload to verify the key techniques and the thruster system developed.

本计画第一阶段预计以两年时间(民国94年4月1日起至95年12月31日止)分两期(第一期自民国94年4月1日起至94年9月30日止，第二期自民国94年10月1日起至民国95年12月31日止)配合NSPO的民国95年的探空火箭发射规划时程，发展联胺单基推进器系统做为探空火箭酬载，除了验证自主发展的推进器系统与关键技术外，并进行高空实验以进一步模拟测试该系统在高空环境与微重力状态的性能特性。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。