An electron in the innermost orbit has the least energy.
最里面的轨道上的电子能量最低。
Either of two points at which the orbit of a satellite intersects the orbital plane of a planet.
轨道交点卫星的轨道与行星的轨道面相交的两点中任何一点
First, we know that the planets all orbit close to the earth's orbital plane, the ecliptic.
首先，我们知道所有行星的轨道都很靠近地球的轨道平面――黄道面。
the track on which trams or streetcars run.
一种有轨电车或路面电车在上面行进的轨道。
Study on the Damage Detecting for the Surface of Light-Rail s Beam;
轻轨轨道梁梁面缺陷检测技术的实验研究
This new track may also be used In UMT, metro lines and elevated lines.
此种道床轨道可在城市轨道交通的地面、地下和高架桥上应用。
a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force.
路或轨道的有坡度的一面。
In the south they are putting in a wide-gauge track to replace the old narrow-gauge lines.
在南面，他们正在铺设宽轨的铁道儿代替原先的窄轨的铁道。
(astronomy) the plane on which a body is orbiting.
（天文学）物体进入轨道的平面。
Mercury and Earth do not orbit the sun on the same line.
水星和地球的轨道不在同一个平面上。
the acceleration toward the center that holds a satellite in elliptical orbit.
在卫星椭圆轨道上面向中心的加速度。
All the orbits lie nearly in the same plane.
所有物体的轨道几乎都在同一平面上。
To pin down the size of an orbital, we take a contour surface.
为束缚住轨道的大小，我们取一等值面。
This classification is the analogy of our previous picture of stable orbits.
这种区分类似于前面的稳定轨道图形。
Optimization Method of Minimum-time Nonplanar Hit Orbit for SGKW
SGKW时间最短异面打击轨道的优化方法
Application of Electric Monorail Crane to Gateway of Coal Mining Face
电动单轨吊车在工作面巷道中的应用
Analysis of Station-Keeping Strategies for Collocation of Geostationary Satellites Based on Eccentricity and Inclination Perpendicular Separation
基于切平面内隔离的静止轨道共位卫星轨道保持策略
A slope or gradual inclination, especially of a road or railroad track.
斜坡斜面或缓缓的倾斜面，尤指道路或铁轨的