固定基准点 meaning in English
fixed datum
Examples
- The idea behind the experiment is simple : put a spinning gyroscope into orbit around the earth , with the spin axis pointed toward some distant star as a fixed reference point
实验背后的原理十分简单：将转动的回转仪放在环绕地球的轨道，转轴指向远处星体，作为固定基准点。