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a structure or object that impedes free movement any condition that makes it difficult to make progress or to achieve an objective; "intolerance is a barrier to understanding" anything serving to maintain separation by obstructing vision or access
출처: wordnet.princeton.edu/perl/webwn
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| barrier |
In polar terminology, an early term for ice shelf; first used by Sir James Clark Ross for the face of the Antarctic ice shelf later named for him, Ross Barrier.
출처: amsglossary.allenpress.com/glossary/browse
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| barrier |
1. Any impediment to the international movement of goods, services, capital, or other factors of production. Most commonly a trade barrier. 2. An entry barrier.
출처: www-personal.umich.edu/~alandear/glossary/b.html
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A physical block or impediment to the movement or migration of fish, such as a waterfall (natural barrier) or a dam (man-made barrier).
출처: www.streamnet.org/pub-ed/ff/Glossary/glossarydam.h...
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means any material, structure, or feature that, for a period to be determined by NRC, prevents or substantially reduces the rate of movement of water or radionuclides from the Yucca Mountain repository to the accessible environment, or prevents the release or substantially reduces the release rate of radionuclides from the waste. ...
출처: www.nrc.gov/reading-rm/doc-collections/cfr/part063...
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