You are approaching reference line of fairway.
你船正接近航道的参照线。
Your position distance 400metres from intersection of reference line.
你船的位置距参照线交点400米。
You are on reference line of fairway.
你船在航道参照线上。
It can be a reference of restraining noises of medium-voltage power line.
为中压配电网通信噪声抑制提供参考。
It can be a reference of restraining noises of medium-voltage power line.
为中压配电网通信噪声抑制提供参考。
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