冶金、铁路、电业、公安、油田、石化等企业在各种特殊危险场所警示标志的需要，各种特殊场所作警示标志，也适合于市政、施工作业和监护、救护、抢险工作人员作信号联络和方位指示之用。
... directional distribution 方向分布 directional light 平行光；定向光源；方位灯 directional filter 方向滤波器；分带网络 ...
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应将开关拨至下方位置，看到充电器红色指示灯方可。
We should put switch to bottom position to see the red light indicator.
研究了汽车前照灯近光照射方位角双位屏幕板检测原理及方法。
Study the test principle and method of automobile headlamp near shine azimuth with pairs of location screen boards.
他之所以要这样做就是因为他决定以北极星的方向来确定地图的方位。 因为北极星是一盏不动的导航灯，那个时代的航海家们主要依靠北极星来导航。
The reason for this was that he decided to orientate the map in the direction of the Vole Star since Polaris was the immovable guiding light in which the voyagers of that era placed their trust.
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