空气动力

All of the aerodynamic force must be produced in the absence of any incident flow, meaning lift can only be produced by the powered reciprocating motion of the wing.

所有的空气动力都必须在缺乏任何迎流的情况下产生，意味着只可能通过翼的有动力作用的往复运动来产生提升。

China Aerodynamics Research and Development Center, Mianyang 621000,China

中国空气动力研究与发展中心空气动力学国家重点实验室，绵阳 621000

An aircraft, especially a balloon or dirigible, deriving its lift from the buoyancy of surrounding air rather than from aerodynamic motion.

浮空器从周围空气的浮力而不是从空气动力获得提升力的航空器，特指气球或飞船

An air craft,especially a balloon or dirigible,deriving its lift from the buoyancy of surrounding air rather than from aerodynamic motion.

浮空器从周围空气的浮力而不是从空气动力获得提升力的航空器，特指气球或飞船

As a result of the Western Air Defense Group of plates for the bombers, fighter-bomber powered devices into the aero-engine business all listed companies, including the "Flying Leopard" matching "Qinling" aero-engine, air dynamic fact has become the first A shares listed on the true meaning of the overall military enterprises.

作为西方航空防务集团为轰炸机，歼击航空动力装置到轰炸机发动机业务的所有上市公司，包括板块结果，"飞豹"匹配"秦岭"航空发动机，空气动力实际上已成为第一一份关于军工企业整体上市股票的真正含义。

How to reduce the energy consume so that the quality of the interceptor would be reduced and enhanced the final velocity and average velocity are the key technology of the system scheme for LRADI. Aimed at the character of the LRADI, analysis and study the questions of adoption"interval time can be changed double pulse Solid Rocket Motor"and"double high cast virtual target composition guidance trajectory".

因此如何降低能量的消耗、减轻拦截器的重量，提高末速度和平均速度成为远程反空气动力目标拦截器总体方案的一个重要关键技术，本文针对远程反空气动力目标拦截器的特点，提出和论证了采用"间隔时间可调的双脉冲固体火箭发动机"和"双高抛虚拟目标复合导引飞行弹道"两条新技术途径相关的各种问题。

Air-powered cars work by using an air compressor to pressurize air in the car's tank.

空气动力汽车的工作使用空气压缩机加压空气中的汽车的油箱。

It also is a quiet interior environment, with soundproofing technologies that complement quieting powertrain enhancements and improved aerodynamics to provide a quiet, comfortable and vibration-free ride, even at higher speed.

它也是一个安静的室内环境，隔音技术，以补充平息动力增强和改进的空气动力提供一个安静，舒适和振动的免费乘车，甚至更高的速度。

Researches on fluid dynamic performance of aquatic sports equipment in China were started early, mainly involving with the aerodynamic characteristics of sailboats, sailboards and wind sails, the propulsive char-acteristics of the propeller of racing boats and leather rowboats, the propulsive characteristics of swimming flaps, etc.

我国的水上运动器材的流体动力性能研究起步较早，主要涉及到帆船、帆板、风帆的空气动力特性和船体水动力性能，赛艇、皮划艇桨叶推进特性，蹼泳板的推进性能等等。

The said tunnel will mainly be used to evaluate aircraft stalling/tail shaft performance, and to do complicated aerodynamic stability research in the recovery process of recoverable satellite and manned spacecraft as well as aerodynamic research in other related fields.

这座立式风洞投入使用后，主要用于飞机失速／尾旋性能评估、返回式卫星和载人飞船回收过程中复杂的空气动力稳定性研究，以及其它相关领域的空气动力研究。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。