librations

librations的基本解释

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天平动

与librations相关的网络例句 [注：此内容来源于网络，仅供参考]

Simulated views of the Moon over one month, demonstrating librations in latitude and longitude.

纬天平动是因为月球的自转轴跟公转平面并不完全垂直导致的。

Simulated views of the Moon over one month, demonstrating librations in latitude and longitude.

经天平动是因为地球不在月亮的轨道的中心，而且月亮公转的速度不象自转速度那么均匀等原因导致的。

Through the research of the formation of the frame, it is found that the tilted frame is more stable than the ordinary one because the tilted column increased its lateral stiffness and thus its displacement and librations are decreased.

研究表明改变框架的几何形状，使外柱略微倾斜的办法可以增加结构的抗侧移刚度，获得较好的稳定性；从而相应地减小侧向荷载引起的位移和振动。

Librations are primarily caused by the Moon's varying orbital speed due to the eccentricity of its orbit: this allows us to see up to about6° more along its perimeter.

振动主要地由月亮所引起正在由于它的轨道的古怪改变轨道的速度：这让我们沿着它的周长见到达大约6°更多。

Rubber is a kind of low conduction material, so it can be an ideal product for reducing librations and noise transfer .It is designed with smooth walls and has no influence on flow speed of medium in tests and never rusts either. Therefore , maintenance is not necessary in valid operation period .

因橡胶属不良传导材料，所以它又是一种良好的降低振动和噪声传递的理想环保产品，该产品设计内壁光滑，经实际测试，对介质的流速，流量无任何影响，并且永不生锈，基本可以免除有效运行期内的维修。

与librations相关的网络解释 [注：此内容来源于网络，仅供参考]

librations：天平动

librationonlatitude 纬天平动 | librations 天平动 | libratyfiledesignator 程序库文件标志符

librations inlatitude：纬秤动

天秤动 libration | 经秤动 librations in longitude | 纬秤动 librations inlatitude

librations in longitude：经秤动

天秤动 libration | 经秤动 librations in longitude | 纬秤动 librations inlatitude

librations of moon：月视振动

月蚀限 lunar ecliptic limit | 月视振动 librations of moon | 月下点 sublunar point

librations in latitude：纬秤动

天秤座 Libra; Balance | 纬秤动 librations in latitude | 经秤动 librations in longitude