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- The SERN of a hypersonic vehicle was designed for improving the lift and propulsion force. 摘要为了提升高超声速飞行器单壁膨胀喷管的升力和推力，对其进行了优化设计。
- Preliminary analysis shows that the propulsion force is relative to serval factors, such as liquid viscousness, drive fin wet area and offset, etc. 分析表明,鱼形微机器人推进力与流体的粘性系数、摆翼面积和偏移角等因素有关。
- Based on motion similarity of microrobot drive fin and fish caudal fin, the authors discuss fish (muscle) hydrodynamics, and analyze propulsion force produced by biomimetic fish-like drive fin. 基于鱼类肌肉水动力学的研究,利用鱼类尾鳍与微机器人摆翼运动相似性,对仿生鱼型微机器人摆翼所产生的推进力进行了分析。
- Based on motion similarity of microrobot drive fin and fish caudal fin, this paper discusses fish muscle hydrodynamics, and analyzes propulsion force produced by biomimetic fish-like drive fin. 基于鱼类肌肉水动力学的研究,利用鱼类尾鳍与微机器人摆翼运动相似性,对仿生鱼形微机器人摆翼所产生的推进力进行了分析。
- In simpler terms, it is kinesiologically incorrect to attempt to develop maximal propulsive forces with the body rolled beyond 45 degrees. 简单来说，试图以超过45度的身体滚动来获得最大化的推进力的尝试是错误的。
- This aircraft works by jet propulsion. 这架飞机是喷气推进的。
- It should be noted at that position each champion is applying propulsive force. 需要注意的是在这个姿态每个冠军都是在用推进力。
- Large air and navel forces were set into action. 庞大的空军和海军部队开始行动了。
- Dispersion of forces led up to the defeat. 分散兵力是导致失败的原因。
- The best streamlined shape possible but one which supports the most efficient production of propulsive forces is a more complete concept for contemplation positions in the water for speed swimming. 一个最佳的流线型可能是最好的但是如果能和竞技游泳中的预期位置及有效的产生推进力等要求相结合才更加完善。
- No propulsive forces can be created in a long, side, stretched position and consequently, if that position is held, a swimmer will slow down due to the presence of only resistive forces. 一个长的，伸展的身体形状不可能产生推进力，反而会由于保持这样的姿势使身体只能产生阻力而速度减慢。
- Air pressure forces the water through the pipe. 空气压力使水通过管道。
- The rebellion was crushed by government forces. 政府军已把叛乱镇压下去。
- The forces met with strong opposition. 军队遇到强烈的抵抗。
- The forces of reaction made reform difficult. 反动势力给改革造成了困难。
- Our forces retired to prepared positions. 我们的部队撤退到既设阵地上。
- Thus, the best streamlined position without any propulsive force is undesirable. 因此，即便是最好的流线型位置但如果没有任何的推进力就是不可取的。
- In both, propulsive force is derived from the reaction produced by a stream of air driven rearwards at high velocity. 这两类发动机都是靠高速向后喷射气流所得到的反作用力而发出推力的。
- The propulsive force and the active drag during swimming were measured experimentally to improve athletic performance. 为使运动员在训练和比赛中有良好技术表现,对游泳推进力和动态阻力的测量进行了研究。
- The army defied the enemy's forces. 这支军队英勇抗敌。
