1.
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。
2.
(astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees.
（天文学）轨道平面和具有固定度数的黄道平面之间的夹角。
3.
(astronomy) the plane on which a body is orbiting.
（天文学）物体进入轨道的平面。
4.
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。
5.
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。
6.
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
7.
A curve that cuts all of a given family of curves or surfaces at the same angle.
常角轨道，轨线以同样的角度切割给定系统所有曲线或平面的曲线
8.
T he influences of some parameters, such as rail surface irregularity wavelength, track mass, track rigidity and track viscosity, on the critical speed and the tr ack wave propagation are analyzed.
分析了轨面不平顺波长、轨道质量、刚度、阻尼等参数对轨道临界速度及位移波的影响。
9.
Caculation and Analysis for No.39 Turnout Geometry and Swing Nose Rail
39号道岔平面线形及可动心轨的计算研究
10.
Study on Reachable Domain for Satellite Trajectory with Coplanar Impulse Applied
平面脉冲作用下卫星轨道的可达范围研究
11.
biting stabilized platform
侦察用轨道式稳定平台
12.
the great circle representing the apparent annual path of the sun; the plane of the Earth's orbit around the sun; makes an angle of about 23 degrees with the equator.
在地球上看到的太阳运行的轨道；地球绕着太阳转的平面；与赤道平面大致成度角。
13.
conductor rail (raillaid parallel to the tracks)from which a railway locomotive picks up electric current
导电轨（与路轨平行的轨道,可供机车导入电流）.
14.
having caterpillar treads or tracks on the wheels.
车轮有履带胎面或轨道。
15.
Some Properties of Limiting Set of ω(α) on the Plane dynamic System in the bounded orbit;
平面动力系统的ω(α)极限集在轨道有界时的性质
16.
Simulation of the Electric Particle's Closed Orbits in Parallel Electric and Magnetic Fields near the Elastic Surfaces
带电粒子在平行电场和磁场及弹性界面附近闭合轨道的模拟
17.
Research of the Impact of Short Wave Track Irregularity on the Wheel-rail Force
轨面短波不平顺对轮轨力影响的研究
18.
Research on the Track Irregularity of Ballastless Track in the Comprehensive Experimental Section of Suining-Chongqing Railway Line
遂渝线无砟轨道综合试验段轨道平顺状态研究