“参考点”常见的英文表达是 reference point。
例句:
In this experiment, the origin of the coordinate system serves as the reference point.(在这个实验中,坐标系的原点作为参考点。 )
We need to establish a clear reference point for measuring the progress of the project.(我们需要为衡量项目进展设定一个清晰的参考点。 )