关键词： 激光推进； 冲量耦合系数； 相对误差； 悬摆 [gap=7663]Key words： Laser propulsion； Impulse coupling coefficient； Relative error； Pendulum
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And the impulse coupling coefficient is not sensitive to nozzle length and the distance between ignition zone and inner surface of nozzle.
而冲量耦合系数对点火区与聚光系统内表面的距离及喷管长度等参数并不十分敏感。
The results show that, impulse and impulse coupling coefficient firstly increase and then decrease with the augment of the dimensionless factor when cone angle is fixed;
结果表明：当锥角固定时，冲量和冲量耦合系数随无量纲因子先增大后减小，极大值对应的无量纲因子仅与气体比热比相关；
Energy law of similitude for laser propulsion refers to the law that there is an optimum nozzle configuration for the largest value of impulse coupling coefficient at certain incident laser energy.
激光推进的能量相似律，指确定的激光能量有与之相对应的最佳喷管尺寸，使得冲量耦合系数最大且不变的规律。
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