BMW Wheel Bearings & Hub Assemblies - bearing front hub
You can use an analog watch—the kind with hands—to find south. With the watch on a flat surface, rotate it to point the hour hand at the sun. South is the direction halfway between the hour hand and 12. (If the watch is set to daylight saving time, south is the direction halfway between the hour hand and 1.)
true bearing中文
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Compass bearing
When visibility is subject to change, such as from hills or fog, take a bearing on your destination while you can see it. Then, when it's out of sight, use the bearing to find your direction.
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