point of reference是什么意思 point of reference怎么读
point of reference的英文翻译是什么意思，词典释义与在线翻译
Noun:- an indicator that orients you generally;
"it is used as a reference for comparing the heating and the electrical energy involved"
point of reference的用法和样例
- The level at the reference point is zero.
参考点的电平是零。 - Fly a plane by using visible landmarks or points of reference.
利用可见物或参考点飞行。 - The paper introduces examination methods of ground datum points.
介绍了平面基准点的检验方法。
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