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・ Position (music)
・ Position (obstetrics)
・ Position (poker)
・ Position (team sports)
・ Position (vector)
・ Position Among the Stars
・ Position analysis questionnaire
・ Position and momentum space
・ Position angle
・ Position circle
・ Position Correction
・ Position effect
・ Position error
・ Position fixing
・ Position Ignition
Position line
・ Position of Lebanon in the 2006 Lebanon War
・ Position of the arms in ballet
・ Position of the media on the Armenian Genocide
・ Position of the Sun
・ Position of trust
・ Position operator
・ Position paper
・ Position player
・ Position resection
・ Position sensitive device
・ Position sensor
・ Position tolerance
・ Position weight matrix
・ Position-effect variegation


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Position line : ウィキペディア英語版
Position line

A position line is a line that can be identified both on a nautical chart or aeronautical chart and by observation out on the surface of the earth. The intersection of two position lines is a fix that is used in position fixing to identify the navigator's location.
There are several types of position line:
* Compass bearing - the angle between north and the line passing through the compass and the point of interest
* Transit - a line passing through the observer and two other reference points
* Leading line - the line passing through two marks indicating a safe channel
* Leading lights - the line passing through two beacons indicating a safe channel
* Sector lights – the lines created by masked coloured lights that indicate a safe channel
==See also==

* Navigation
* Position circle


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Position line」の詳細全文を読む



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