查询词典 propulsion

Firstly, this dissertation carries out bionic research on the motion of fish body and caudal fin of Thunmiform swimmers in one-dimensional steady swimming for the purpose of establishing kinematic model of underwater propulsor of Thunmiform. This paper also presents the kinematic parameters which describe the motion of fish body and caudal fin, the fundamental approach to getting the propulsion force and the factors related to the propulsion force and efficiency.

首先，从建立仿鲹科加新月形尾鳍推进模式水下推进器运动学模型的目的出发，对采用鲹科加新月形尾鳍推进模式的鱼类在一维稳态游动情况下的身体以及尾鳍的运动进行了仿生学研究，研究了推进运动的基本特征，给出了身体及尾鳍的运动状态、描述其运动的运动学参数、推进力产生的基本途径以及与推进力和推进效率有关的因素，从而为仿鱼水下推进器运动学建模与仿真提供了仿生学基础。

The result shows that the jet propulsion of aluminium-water reaction engine meets the design requirement for supercavitating torpedo propulsion .

研究表明，采用铝水反应发动机的喷射推进系统可以满足超空泡鱼雷推进系统的设计要求。

Space Propulsion begins with a review of rocket propulsion fundamentals.

在太空推进这门课里，我们将以回顾火箭推进基本原理为开端。

This will make a new approach to research complex and fine structure of flow field inside propulsion, including Interaction between rotor and stator or ship and propulsion, tip clearance-flow and cavitation.

随后，本文针对轴对称体与泵喷推进器组合体的复杂流场进行了数值计算，通过与相近的试验结果的宏观量的对比和分析，表明数值结果具有较好的规律性和合理性。

More and more higher performance of thermodynamic propulsion system of torpedo is required to adapt to the present-day sea fight. As the central part of torpedo, thermodynamic propulsion system is the key technique in the field of research and manufacture of torpedo.

现代海战对鱼雷的诸战术指标提出了更高更新的要求，作为鱼雷心脏的热动力系统是鱼雷研制的一项关键技术。

In space interception,the missile produces saturation ladder-type wave propulsion and trigonal pulse propulsion.

摘 要 在空间拦截中，导弹产生饱和梯形波推力和三角形脉冲推力。

He was instrumentally involved in thedevelopment of the Daniel and Florence Guggenheim Jet Propulsion Center,Caltech's academic focus of instruction and research in jet propulsion.

他参与了加州理工学院喷气推进教学和研究的学术重点-&丹尼尔和佛罗伦萨·古根海姆喷气推进中心&的工作。

Based on this,We designed a series of experiments to study the treatment and its mechanism of Iridoids composition of Valeriana jatamansi Jones of the IBS animal model.1 Research on Iridoids composition of Valeriana jatamansi Jones in the role of gastrointestinal function.1.1 Effection of Iridoids composition of Valeriana jatamansi Jones on gastrointestinal function of normal miceMethods:Compared with normal group and YJBH group,mice which has given Iridoids composition of Valeriana jatamansi Jones as 71.2mg/kg,35.6mg/kg,17.8mg/kg,8.9mg/kg was detected gastric emptying and small intestinal propulsion after 4 days drug given.Results:Compared with normal group,gastric emptying and small intestinal propulsion in 35.6mg/kg and 17.8mg/kg group was inhibited.

课题通过观察蜘蛛香环烯醚萜对正常及IBS模型动物的胃肠道功能、精神活动的影响，以及蜘蛛香环烯醚萜干预下IBS大鼠结肠、血清、中枢5-HT含量，结肠5-HTR3A受体的mRNA和色氨酸羟化酶(TPH1)的mRNA表达，结肠和血浆中SP和VIP含量以及结肠中肥大细胞分布，探讨蜘蛛香环烯醚萜对腹泻型IBS的治疗作用及其作用机理，为临床治疗IBS提供实验依据。1蜘蛛香环烯醚萜对胃肠功能的作用目的：探讨蜘蛛香环烯醚萜对胃肠功能的影响1.1蜘蛛香环烯醚萜对正常小鼠胃肠功能的作用方法：正常小鼠灌胃给予蜘蛛香环烯醚萜71.2mg/kg、35.6mg/kg、17.8mg/kg、8.9mg/kg与空白组和越鞠保和丸组对照，给药4日后测定动物的胃排空率和小肠推进率。

As the development tendency of marine electrical propulsion, podded electrical propulsion have been widely applied abroad owing to its excellent characteristics.

作为船舶推进的发展方向之一吊舱式全电力推进船舶以其巨大的优越性得到了越来越广泛的应用。

As the development tendency of marine electrical propulsion, podded electrical propulsion have been widely applied abroad owing to its excellent characteristics.

作为船舶电力推进的发展方向，吊舱式电力推进以其优越的性能在国外获得了越来越广泛的应用。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。