whl003
幼苗
共回答了15个问题采纳率:93.3% 举报
To take a fix .using the compass hairline,sight on a prominent landmark or feature shown on a map.Read the magnetic dearing from the front of the compass dial.
带固定.使用指南针的发际线,在一个突出的标志性或特征显示在地图上.读磁性的从前面的指南针拨号.
For example,assume you are sighting on a lighthouse and the bearing to the lighthouse in 40度.Now place the compass the map so that light house is on wire-line and Ns is parallel to the magnetic north line on the map.Your location is on the dotted line.
例如,假设你瞄准的灯塔和轴承的灯塔在40度.现在把指南针的地图,房子光线在绳索和平行于北线的地图.你的位置是在虚线.
1年前
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