| refractory |
Brickwork or castable used in boilers to protect metal surfaces and for boiler baffles.
출처: www.cleaver-brooks.com/GlossRW.html
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|---|---|
| reflected ray |
is the ray of light bouncing off the mirror
출처: www.fi.edu/fellows/fellow7/mar99/light/vocabulary....
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| reference dose |
A dose of a pesticide that the US EPA considers safe for regular daily consumption by humans without adverse health effects. Generated by taking the NOAEL from animal studies and adding uncertainty factors to account for differences between animals and humans, and susceptibility within the human population.
출처: www.nrdc.org/health/kids/farm/glos.asp
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| reference |
A published reference which establishes or describes the standard.
출처: www.fws.gov/stand/standards/defterms.html
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| refraction |
A test to determine the best eyeglasses or contact lenses to correct a refractive error.
출처: www.drburr.homestead.com/files/glossaryofeyeterms2...
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