ค้นหาอัตโนมัติโดยใช้ *point switch*
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
. (Railroads) A switch made up of a rail from each track, both rails being tapered far back and connected to throw alongside the through rail of either track. [ Webster 1913 Suppl. ]
WordNet (3.0) WordNet (3.0)
(n) an electric switch that has three terminals; used to control a circuit from two different locations, Syn. three-point switch
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