straight line course的意思|示意

We have taken such a very serpentine course, and the wood itself must be half a mile long in a straight line, for we have never seen the end of it yet since we left the first great path.

我们走的这条路弯弯曲曲的，这片林子从这边到那边的直线距离肯定有半英里，我们离开第一条大路到现在，还望不见树林的尽头。

The reason of deviation phenomena in the course of gear shift is analyzed when the tracked vehicle is running straight-line.

针对该履带车辆在直线行驶换挡过程中发生偏驶的现象，分析了产生偏驶现象的原因。

Of course, if you are moving in a straight line, then the two notions are the same.

当然，如果是做直线运动，这两种概念是一样的。