| Clean Air Act |
Although the 1990 Clean Air Act is a federal law covering the entire country, the states do much of the work to carry out the Act. For example, a state air pollution agency holds a hearing on a permit application by a power or chemical plant or fines a company for violating air pollution limits.Under this law, EPA sets limits on how much of a pollutant can be in the air anywhere in the United States. This ensures that all Americans have the same basic health and environmental protections. ...
출처: en.wikipedia.org/wiki/Clean_Air_Act_(1990)
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| cleidoic |
An egg with an impervious shell.
출처: www.geocities.com/Heartland/Bluffs/8071/reptile/te...
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| Cleeman's sign |
creasing of the skin just above the patella, indicative of fracture of the femur with overriding of fragments.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| clear |
1. After US weather observing practice, the state of the sky when it is cloudless or when the sky cover is less than 0.1 (to the nearest tenth.) In aviation weather observations, a clear sky state is denoted by the symbol
출처: amsglossary.allenpress.com/glossary/browse
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| clearance |
In aviation terminology, authorization for an aircraft to proceed under conditions specified by an air traffic control unit. For convenience, the term
출처: amsglossary.allenpress.com/glossary/browse
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