The Air Force quickly became the think tank's main contractor, and Rand began consulting on everything from propeller turbines to missile defense.
空军很快成为了这家智库的主要承包商，兰德开始就从螺旋桨涡轮到导弹防御等一切问题进行咨询。
When a plane's propeller, for example, spins through a cloud, the propeller exerts a rearward force.
比如，当飞机的螺旋桨疾驰过云层时，会给云一个向后的作用力。
Through Hap’s connections, the Air Force quickly became the think tank’s main contractor, and RAND began consulting on everything from propeller turbines to missile defense.
通过Hap的人际关系，空军很快成为智囊团的承包商，兰德也由此开始研讨从推进涡轮到导弹防御的一切课题。
The strength calculation formula of the screw propeller under the action of centrifugal force was obtained through multivariate fitting.
经多变量拟合，得到了离心力作用下螺旋推进器的强度计算公式。
The paper gives a introduction to the mechanism of exciting force induced by propeller and the stern lines design that can reduce the vibration.
本文主要介绍由船舶螺旋桨引起的激振力以及减少振动的尾部线型设计。
The hydrodynamic performance of podded propeller is calculated, including the open water characteristics and bearing force.
用面元法对吊舱螺旋桨的水动力性能进行了计算，得到了吊舱推进器的敞水曲线和轴承力。
It is verified by means of model test that the ship vibration is caused by the propeller-excited force, which is generated by the propeller running in the non-uniform stern flow field.
并通过模型试验进一步证实该船振动的成因主要是由于螺旋桨在不均匀流场中运转时产生的激振力所致。
The propeller is to be force fitted to the propeller shaft by using the hydraulic jack which the Builder possess and secured by wet type keyless fitting method.
螺旋桨通过使用船厂提供的液压顶升装置压入螺旋桨轴并采用湿式无键固定法紧固。
The transverse thrust is the sideways force of the propeller as it rotates.
横向推力是螺旋桨的横向效力，因为它旋转。
The optical force and torque of a micro-propeller-shaped rotor driven by TEM00Gaussian laser beam are calculated with a geometric-optics model.
在几何光学模型近似下，对用TEM 00高斯激光束驱动微型螺旋桨结构的光驱动力和力矩进行了理论计算。
The thrust force of an airplane is produced by the propeller.
飞机的推力由螺旋桨所产生。
It is easy to adapt to the Stirling engine boat, but the propulsive force is lower than that of the screw propeller.
人们很容易适应斯特林发动机船，但推进力是低于螺旋桨。
The propeller is not only favorable to enhance the efficiency of marine propulsion systems, but also can generate large pushing force.
该螺旋桨不仅有利于提高船舶推进系统的效率，而且能产生较大推力。
The booster for swimming is characterized in that the propeller is driven to rotate by utilizing pedaling force of legs and feet. Thus, the great thrust is generated.
这个游泳助推器就是用腿、脚的蹬力带动螺旋桨旋转，产生较大的推力。
When the water with the same water-flow flows, water running thrust force suffered by the mobile type magnet sensor with two propeller blades can be increased.
当同样的水流量流过时，具有两片螺旋桨片的活动磁铁传感器受到的水流推力会增加。
When the water with the same water-flow flows, water running thrust force suffered by the mobile type magnet sensor with two propeller blades can be increased.
当同样的水流量流过时，具有两片螺旋桨片的活动磁铁传感器受到的水流推力会增加。
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