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- The orientation of a spacecraft relative to its direction of motion. 飞行姿态宇宙飞船相对于其飞行方向所处的位置
- Newton's laws of motion do not single out a direction of time. 牛顿运动定律不能确定时间的方向。
- The trace of a point whose direction of motion changes. 运动的方向改变的一个点的迹线。
- Involving differences in speed or direction of motion. 差动的涉及速度或运动方向不同
- A vector quantity whose magnitude is a body's speed and whose direction is the body's direction of motion. 速度一种向量，其量值为物体的速率，其方向为物体运动的方向
- A change in the direction of motion requires a force just as a change of speed does. 运动运动的改变要求一个力，正象速度的改变也要求一个力一样。
- A moving object appears to shrink in the direction of motion, as seen by a stationary observer. 固定的观察者来看运动的物体,它在运动方向上似乎会缩小。
- Reel and release drill line， change direction of changing valve position can be changed the direction of motion. 收绳和放绳，改变手动换向阀的位置即可改变运转方向。
- The tether system would experience a force in its direction of motion, yielding thrust instead of drag and raising its orbit. 缆索系统会受到顺著其运动方向的力，造成推进而非拖曳，因此轨道会提高。
- Atmospheric pressure, air temperature, wind speed and direction, cloud type, cloud amount and direction of motion and rainfall amount were observed. 观测项目有大气压力、气温、风速、风向、云型、云量、云的移动方向及雨量等;日照时间亦有记录。
- Newton's law of motion apply to all things on the earth. 牛顿时的运动定律适用于地球上一切东西。
- The apparent displacement of the position of a celestial body in the direction of motion of an observer on Earth, caused by the motion of Earth and the finite velocity of light. 光行差由于地球的运动和光的有限速度，而引起的天体位置在地球上观察者在运动方向上的明显移位
- Thus, for an EDT in eastward LEO, in which the electrons flow from top to bottom of the tether, the force is opposite to the direction of motion. 因此，在东向的LEO里的EDT，若电子自缆索由上而下流动，受力就会与运动方向相反。
- Anstis SM (2004) Factors affecting footsteps: contrast can change the apparent speed, amplitude and direction of motion. Anstis钐（ 2004 ）的影响因素的脚步：对比可以改变明显加快，振幅和方向的议案。
- ANGLE OF CLIMB or Dive is the vertical angle between the horizontal and the direction of motion of the target measured in degrees at the target. 爬升角或俯冲角目标移动方向与水平面所形成的垂直夹角，以角度量取。
- Rapidity or speed of motion; swiftness. 迅速，快速运动的快速或速度; 迅速
- The ship launched in the direction of Japan. 船起航前往日本。
- The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed. 物体的加速度与所受的合外力成正比，与物体的质量成反比。加速度的方向与合力的方向相同。
- He drove in the direction of the farm. 他向该农场方向驶去。
- These motion effects not only represent the direction of motion but also set off the atmosphere by contrast.But, for drawing these effects animators need to spend extra time. 这些效果不仅是为了表现物体的运动方向，也为了能更烘托出画面的气氛，但往往在动画制作的流程中，动画师需花费不少额外的时间来完成这些效果。
