| 单词 | thermal |
| 释义 | thermal adj. & n. --adj 1. of, for, or producing heat. 2. promoting the retention of heat (thermal underwear). --n a rising current of heated air (used by gliders, balloons, and birds to gain height). Phrases and idioms British thermal unit the amount of heat needed to raise 1. lb. of water at maximum density through one degree Fahrenheit, equivalent to 1.055 x 10(3) joules. thermal capacity the number of heat units needed to raise the temperature of a body by one degree. thermal neutron a neutron in thermal equilibrium with its surroundings. thermal reactor a nuclear reactor using thermal neutrons. thermal springs springs of naturally hot water. thermal unit a unit for measuring heat. Derivatives thermalize v.tr. & intr. (also -ise). thermalization n. thermally adv. Etymology: F (as THERM) |
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