查询词典 trajectory

According to the structural design of micro engines without ring and pin, the dynamic model describing piston secondary motion is developed, the simulation of piston continue trajectory is finished and the effect of working parameters under ideal condition is studied too.

微小型活塞式发动机是目前最合适的动力源，但理论研究尚未涉及。论文重点发展柱塞横向运动的建模与仿真技术，并从摩擦学的角度对微小型发动机的设计问题作理论探讨。

Acoustic position ; shock wave ; trajectory vector

声定位；激波；弹道矢量

This grim trajectory suggests an economic, as well as a political, rationale for government action.

这个可怕轨迹暗示政府行动的一个经济的，也是政治的基本原理。

From the great development trajectory, the vertical social mobility of the rural society reflects the level of social development.

从长时段的发展轨迹上来看，晚清直隶农村的社会垂直流动折射出了晚清直隶农村社会的综合发展水平。

By using sliding mode control approaches, we consider a two-vehicle team in leader-follower configuration that is required to follow a prescribed trajectory while maintaining a desired relative distance, relative bearing angle and heading orientation.

考虑了两个机器人组成的领航者－跟随者机器人模型，通过滑模控制使它们沿预定的轨迹运动并保持预定的相对距离、方位角及运动方向。

The simulation results also provide a reference to trajectory design for a ramjet powered tactical missile.

弹道的优化研究为以冲压发动机为动力的战术导弹的弹道设计提供了理论参考。

The simulation results also provide a reference to trajectory design for a ramjet powered tactical missile.

为以冲压发动机为动力的战术导弹的弹道设计提供了理论参考。

In this paper,new formulations for analysis of trajectory sensitivity with respect to fault clearing time are proposed.

1引言近年来，轨迹灵敏度方法在电力系统动态安全分析中的应用取得了很大发展[1-4]。

For improving the performance in flight of a pilotless aircraft, this paper striving for the optimal climb trajectory of the pilotless aircraft in the vertical plane using maximum principle.

弓言关于飞机飞行性能优化的研究成果已不断地用于飞机飞行性能计算和轨道设计中&&，学者们富有成效的工作对这一领域的发展起到重要推动作用。

The calculating result states that the fuel can be saved and the endurance time of the pilotless aircraft can be lengthen or the final altitude predetermined can be climbed fast and there are better the profit in performance according to the climbing trajectory optimized.

计算结果表明，经优化后的爬升轨迹可以节省燃油、延长无人机的续航时间或快速爬升到预定的终点高度，具有较好的性能收益。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。