| tuning fork |
a metal implement with two prongs that gives a fixed tone when struck; used to tune musical instruments
출처: wordnet.princeton.edu/perl/webwn
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| tunnel |
a passageway through or under something, usually underground (especially one for trains or cars); "the tunnel reduced congestion at that intersection" burrow: move through by or as by digging; "burrow through the forest" burrow: a hole in the ground made by an animal for shelter force a way through
출처: wordnet.princeton.edu/perl/webwn
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| tunnel vision |
visual impairment involving a loss of peripheral vision
출처: wordnet.princeton.edu/perl/webwn
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| tungsten |
Tungsten (formerly Wolfram) is a chemical element in the periodic table that has the symbol W (L. Wolframium) and atomic number 74. A very hard, heavy, steel-gray to white transition metal, tungsten is found in several ores including wolframite and scheelite and is remarkable for its robust physical properties. ...
출처: en.wikipedia.org/wiki/Tungsten
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| tunnel vision |
loss of peripheral vision so that only objects directly ahead can be seen; most commonly due to damage caused by increased pressure within the eye (glaucoma)
출처: www.american-depot.com/services/resources_gl_t.asp
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