它是指服务作为参考，为所有新的业务规划。
It is meant to serve as a reference for all new business planning.
youdao
那是因为0V的参考电压通常是指众所周知的大地。
That's because the 0 V reference is usually the famous ground.
这一术语有时也指深度参考点。
The term is sometimes used to mean the depth reference.
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