中文名称 临界倾角 英文名称 criticalinclination
定义 中文名称： 临界倾角 英文名称： critical inclination 定义： 取值为63°26′或 116°34′的人造地球卫星轨道倾角。此时卫星拱线无长期运动。 应用学科： 天文学（一级学科）； 天体力学（二级学科）
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此外，当边坡中有张裂缝和水时，滑面的临界倾角还与张裂缝的深度和水位高度有关。
In addition, when there are tension crack and water in the slope, the critical inclination has relations with the position of crack and the level of water.
阐述了临界倾角太阳同步回归轨道这种特殊椭圆轨道的设计方法，总结了其轨道要素的计算步骤。
The method of designing special elliptic orbit which was critical inclined, sun synchronous and repeating ground trace was expounded, and the calculation process of this method was summarized.
结果表明，开裂点、开裂角、最大切向拉应力和临界载荷随椭圆的纵横轴比和倾角的不同而变化，由此可得到最危险的倾角。
The results show that opening point, opening angle, maximal tangential stress and critical load vary with aspect ratio and inclined angle. The most dangerous inclined angle is obtained accordingly.
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