| twinning |
The development of intergrowths of two or more single crystals of the same mineral that share common atoms, typically along planes
출처: www.und.edu/instruct/mineral/geol318/webpage/klapp...
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| twinning |
Often, four laning is done by twinning the existing highway or Super-2. This is done by constructing a new road parallel to the existing two lane roadway and dividing northbound and southbound traffic with the use of a median. See Freewayization.
출처: webfil_92.tripod.com/autoroutes/id53.html
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