推力

By setting up force model of rolled stock in cutting area, function relation among clamp ing force, side clearance of cutting blade and side thrust is given out.

建立了轧件在剪切区的力学模型，给出了压板力、剪刃侧隙与侧推力的函数关系，并提出减小侧推力影响的对策。

A bilateral permanent magnet brushless DC linear motor with short-pitch concentrated windings can be manufactured easily and with great thrust,but the back electromotive forceof its stator windings influences the thrust significantly and need careful analysis.

摘 要：短距集中绕组双边型永磁无刷直流直线电机制作简单、推力大。其定子绕组的反电势波形对推力影响较大，需要加以分析。

A bilateral permanent magnet brushless DC linear motor with short-pitch concentrated windings can be manufactured easily and with great thrust,but the back electromotive forceof its stator windings influences the thrust significantly and need careful analysis.

作者：赵宏涛，吴峻摘要：短距集中绕组双边型永磁无刷直流直线电机制作简单、推力大。其定子绕组的反电势波形对推力影响较大，需要加以分析。

Cut file, sawing skills by learning the grip, standing position, body movements, and many other points force factors and the impact of the traditional grip of the emergence of file-grip handle to stand up after slightly outside the site of the palm, when a file cut Force, after the file handle a gradual shift,"hold" to "grasp", resulting in the introduction file enough; saw grip handle full point higher than the thrust of the saw blade to install center hole of about 30mm, the high point of thrust is likely to result in the bow saw On both sides of the swing, resulting in a broken saw blade and saw seam askew.

锉削、锯削技能的学习是受握法、站立部位、身体动作、作用力点等诸多因素的制约和影响的，传统的握法出现握锉柄后顶住部位稍偏离手心，锉削时一用力，锉柄逐渐后移，&握&变成&抓&，造成锉刀推出力度不足；满握锯柄的推力点高于锯条安装孔中心约30mm，偏高的推力点很容易造成锯弓向两侧摆动，造成锯条折断及锯缝歪斜。

The thrust coefficients and propulsive efficiency of a two-dimensional flexible fin with heaving and pitching motion were computed using FLUENT. The effect of different locations of the pitching axis on propulsive performance was examined using three deflexion modes which are respectively, modified Bose mode, cantilever beam with uniformly distributed load and cantilever beam with non-uniformly distributed load.

利用FLUENT软件数值计算了二维柔性鳍作升沉纵摇运动时的推力系数及推进效率，探讨了修正Bose变形方程、均匀载荷和非均匀载荷悬臂梁变形方程等三种柔性模式下纵摇轴位置对摆动鳍推进性能的影响，其中纵摇轴在尾缘处能够获得更大的推力，而最高的推进效率分别对应修正Bose模式下纵摇轴距首缘1/3弦长处和悬臂梁柔性变形模型下纵摇轴距首缘2/3弦长处。

Jet vane is a way of achieving thrust vector control. However, solid rocket motors in the wake of the jet vane work will inevitably cause a degree of thrust loss, this will lead to decline SRM performance and shorten missile range.

燃气舵是实现推力矢量控制的一种方式，但在固体火箭发动机尾流工作中的燃气舵不可避免的造成一定程度的推力损失，导致发动机性能下降和导弹射程减小。

Concerning the physical process of the combustion and the heat transfer in the thrust chamber of the tripropellant liquid rocket engine, a numerical simulation method is developed about the interior combustion and the exterior regenerative cooling.

本文针对三组元液体火箭发动机推力室燃烧与传热的物理过程，对推力室内燃烧及外部再生冷却进行了仿真研究。

A maneuvering mathematical model for Controllable-Pitch Propeller ships with three degrees of freedom is established according to separate modeling theory. Based on Netherlands Ship Model Basin\'s open-water tests, CPP thrust coefficients and torque coefficients in four-quadrant with different pitch ratio of screw and different types of CPP are obtained by using Akima interpolation. Therefore, CPP thrusts and torques are obtained.

基于船舶操纵性分离建模理论，采用荷兰船模试验水池B系列螺旋桨的敞水试验结果，利用Akima插值获得了不同类型的调距桨在不同螺距比下的四象限推力系数和扭矩系数，求得调距桨的推力和扭矩，建立了调距桨船舶的平面运动数学模型。

Using well-known compressible flow equations for a perfect gas, tables of flow properties have been generated for different values of g.

fromthese表，气速，马赫数和喷管推力系数的（ cf -定义为推力除以产品总商会的压力和喉咙区），得到了作为一个功能的喷嘴面积比例和G 。

The calculating formula of solving the temperature at any preselected interior mesh point in thrust bearing is obtained.

计算、分析了不同参数对推力轴承润滑性能的影响，认为载荷、镜板转速和进油温度的大小是影响推力轴承润滑性能的主要因素。

The dynamic variation in content of cndogenous abscisic acid,indoleacetic acid,gibberellinsand isopentenyladenodines of normal juvenilefruit and dropped fruit was measured with enzyme linked immunosorbent assayin the course of physiological fruit drop of 'Shuizhang Longan.

应用酶联免疫法测定了水涨龙眼生理落果期间正常幼果和脱落幼果中内源激素ABA、IAA、GAs及iPAs含量的变化。

Zillions of code examples on the web.

网上数量巨大的代码例程。