What is meant by "reference distance"?
什么是标准距离?
Your position distance 400metres from intersection of reference line.
你船的位置距参照线交点400米。
J represents distance above reference point Y (top of mount bracket).
J代表距离参考点y的距离(安装托架顶部)。
J represents distance above reference point Y (top of mount bracket).
J代表距离参考点y的距离(安装托架顶部)。
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