轨迹的英文：
locus
orbit

参考例句：

Global Tracks
全体轨迹;通用轨迹

Spawn Trails
沿轨迹产卵

The locus of the centers of curvature of a given curve.
渐屈线一给定曲线率中心的轨迹

A plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line.
抛物线到一固定直线和不在直线上某一固定点等距的点的轨迹所形成的平面曲线

Note Track
注解轨迹

Selected Tracks
选择轨迹

Show Track Bar
显示轨迹栏

Selected Tracks Only
仅选择轨迹

Delete Track View
删除轨迹视图

Change to Track View
改变到轨迹视图

locus是什么意思：
n. 场所；基因座；段落；轨迹

It is a most authoritive locus on a subject.
这是一段关于某问题的最权威性的章节。

The locus of the centers of curvature of a given curve.
渐屈线一给定曲线率中心的轨迹

The colon is the locus of a large concentration of bacteria
结肠是大浓度的细菌所在地。

The destination or locus of multinational investment has changed.
跨国公司投资的流向地区起了变化。

The taxpayer does not have locus standing in this court.
该纳税人没有在法庭上的陈述权。

orbit是什么意思：
n. 轨道；眼眶；势力范围
v. 绕轨道运行；使进入轨道

posterior orbit
后眼眶

eye socket | orbit
眼眶| 眼窝

stable electron orbit
稳定电子轨道

The orbit of Mars is elliptic.
火星的轨道是椭圆形的。

Why do satellites stay in orbit?
为什么卫星会沿轨道运行呢？