imaginary straight line meaning in English
假想下线
Examples
- First , identify the constellation where the radiant lies . watch carefully the path of the meteors . if necessary , you can trace back the path as an imaginary straight line to see whether it intersects with the radiant
首先在星空中找出辐射点所在位置的星座，留心那些流星在天空的轨道，看其延长线是否落在这个辐射点的天区上。