The ability of a moving-mass control system to control the attitudes of a spinning vehicle is investigated.
研究了旋转弹变质心控制系统的姿态控制问题。
The response characteristic of moving-mass control for the low-altitude aircraft is researched based on the moving-mass control system model of the flying saucer.
在建立碟形飞行器变质量矩控制数学模型的基础上，对低空飞行器变质量矩控制的响应特性进行了仿真研究。
The nonlinear equations of motion with two internal moving-mass actuators are provided, and the influence to the system of moving masses' motion with respect to the vehicle's shell is described.
建立了带有两个可移动滑块的导弹系统非线性运动模型，分析了滑块与弹壳的相对运动关系对系统运动产生的耦合影响。
Slowly she threaded her way back through the moving mass of bodies.
她在行人中缓慢穿行，挤了回来。
The parts used in mass production are often manufactured elsewhere and then put together on a moving production facility known as an assembly line.
使用于批量生产的零件通常在别处生产,然后在一个移动的生产设备(我们称之为组装线)上组装.
Can you see that the center of mass is moving very uniformly, or can you not see that?
你能看到物体重心吗，它稳定地运动，你们能看到吗？
But moving the machines into mass production has proved problematic.
但是，把机器移动到大规模生产的证明问题。
We did a demonstration there with two vibrating objects with a spring, but yet the center of mass was moving with a constant velocity.
我们做过演示的，弹簧连接两个振动物体，但是质量重心，却保持稳定速度。
You're not moving, you're in the center of mass.
你没有移动，你处于质量重心。
Finally comes a coronal mass ejection, or CME, a slower moving cloud of charged particles that can take several days to reach Earth's atmosphere.
最后是日冕物质抛射，或是CME，一阵雨携带带电粒子云可在几天内到达地球大气。
They are also some 80% quieter because the mass of slower-moving air shrouds the noisy hot gases coming from the rear of the jet.
此外，由于引擎（发动机）外部运动较慢的空气覆盖了高温燃气排出引擎后部时的噪音，“高旁道比”（高涵道比）飞机的噪音指数下降了80%左右。
They're also moving away from the mass market and the preoccupation with the transaction.
他们不再只关注大众市场和交易。
Or in other words a moving body is not a body of mass but just the force.
换句话说运动物体不是一个机构的质量，但只是武力。
Although the parachute is widely used in deceleration system, it's seldom mentioned the establishment of moving equation and especially the added mass.
降落伞在减速系统中已被广泛地运用，但是其运动方程的确立，尤其是方程中的附加质量项，在中国却少有提及。
So, switching the area, moving the area to the other side, I'll get double integral of xdA is the area of origin times the x coordinate of the center of mass.
那么，改变一下区域，把这块移到另一侧，我们得到对xdA的双重积分,是原点那的圆面积乘质心的x的坐标。
So astronomers have devised clever ways of inferring the mass of our galaxy by measuring how it pulls on smaller objects moving around it.
因此天文学家采用了一种聪明的办法来推断银河系的重量，即通过测量它如何牵引在其周围转动的行星。
A cold front is the forward edge of a mass of moving cold air.
冷锋是一团移动着的冷气流的前锋面。
Holes are bored in the armature to decrease moving mass and reduce air damped effects.
设计中在减小运动质量的同时，考虑降低空气阻尼的影响，采取在衔铁上打孔的措施。
Cross beam and Axis Z are made of surface-anodized aerometal to improve thermal stability and reduce moving mass for faster setting.
Z轴采用表面阳极化航空铝合金，温度一致性极佳；并降低了运动部件的质量，减少测量机在高速运行时的惯性。
But even so in a lift 500 metres tall steel ropes account for up to three-quarters of the moving mass of the machine.
但是，即使在一个500米高的电梯中，钢索的重量也高达整个机械移动重量的四分之三。
Center of Mass Moving Through:Whenabsorbing and extending the center of mass should always be movingdown thefall line.
身体中心的移动：当吸收和伸展的时候，身体中心要始终沿滚落线向下运动。
The linkage relationship between mass center of moving segments and mass center of human body are validated by experiment.
利用该仪器对运动环节质心与人体总质心之间存在的联动关系进行了实验验证。
A good demonstration of the relativistic change of mass can be observed experimentally on very fast-moving particles.
一个证明相对质量改变的好实验，可以通过在高速运动的粒子上观察到。
Thisformula can be used to evaluate the relative changes of engine specific fuel consumption caused by the relative changes of engine moving parts mass during engine design and practical operation.
在发动机设计阶段和发动机实际使用中，可以应用这个公式，估计运动件质量变化所引起的比油耗的相对变化。
Remote mounted drive motors reduce moving mass for faster setting, and dissipate heat away from the machine frame.
电机远程放置减少了移动质量，提高了速度，也避免了电机发热对机器性能的影响。
The wind, which is a mass of moving air, will be carrying much water vapor, because the air is warm and has just absorbed water from the gulf.
这风是一团移动的空气，将夹带许多水汽，因为空气缓和，刚从海湾吸收过水分。
The wind, which is a mass of moving air, will be carrying much water vapor, because the air is warm and has just absorbed water from the gulf.
这风是一团移动的空气，将夹带许多水汽，因为空气缓和，刚从海湾吸收过水分。
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