| 释义 |
DEFINITIVE EXAMPLES 权威例句〔blue shift〕A decrease in the wavelength of radiation emitted by an approaching celestial body as a consequence of the Doppler effect.蓝移：飞近的天体发射出的幅射波长之减小，是杜普勒效应的结果美国传统〔langley〕A unit equal to one gram calorie per square centimeter of irradiated surface, used to measure solar radiation.兰利：等于每平方厘米发光表面一克卡的单位，用于测量太阳幅射量美国传统 |