The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.
第三定律（周期定律）：各个行星绕太阳公转周期的平方和它们的椭圆轨道的半长轴的立方成正比。
A prolate spheroid is generated by revolving an ellipse about its major axis.
扁长球体是将一个椭圆体依其主轴旋转而成的。
When the disc is in the open position, the seal major axis is greater then the disc diameter and they do not touch.
阀盘处于打开位置时，密封件长轴大于阀盘直径，且相互不接触。
The distribution of average aerosol concentration has an elliptic form and the direction of its major axis is NW-SE.
气溶胶平均浓度的分布呈椭圆形，长轴方向为西北—东南向。
Flammability: Definition of major axis has been re-defined, while the definition of accessories, strings and paper have been added.
阻燃性：主轴的概念被重新定义，同时加入了附件、绳和纸的定义。
In order to guarantee the characteristics of frozen orbit, in-plane orbit control needs to adjust the semi-major axis, eccentricity, argument of perigee simultaneously.
为了保证冻结轨道的冻结特性，平面内轨道控制需要对半长轴、偏心率和近地点幅角都控制。
Yingkou Olympic Sport Center is planned to construct to the west of the node of Huanghai Street and Shifu Road in Yingkou and is located on the major axis of the city core of Yingkou.
营口市体育中心拟建在营口市黄海大街与市府路交汇处西，位于营口中心城区主轴线上。
When the planetary migration occurs under the tidally interaction of a planet and a disk of gas or a planetesimal, the orbital parameters, especially, semi-major axis, of this planet will be altered.
行星迁移发生在行星与气体或星子的星盘之间进行潮汐相互作用时，这造成行星轨道参数，特别是半主轴的变更。
When the planetary migration occurs under the tidally interaction of a planet and a disk of gas or a planetesimal, the orbital parameters, especially, semi-major axis, of this planet will be altered.
行星迁移发生在行星与气体或星子的星盘之间进行潮汐相互作用时，这造成行星轨道参数，特别是半主轴的变更。
应用推荐