| 单词 | radiation thermometer |
| 释义 | > as lemmasradiation thermometer radiation thermometer n. (a) Meteorology a thermometer used for measuring temperature when placed in direct sunlight (as opposed to the temperature in the shade); (b) a thermometer that measures the temperature of a distant object by measuring the spectrum of the heat radiation it emits. ΚΠ 1850 Philos. Trans. (Royal Soc.) 140 335 There is not any record of the radiation thermometer in November at Dodabetta. 1868 Symons's Meteorol. Mag. 3 7 The sensitiveness of a terrestrial radiation thermometer. 1954 Geogr. Jrnl. 120 189 Sun temperatures of 69°C. (156°F.) measured with the black bulb radiation thermometer were observed in association with shade temperatures near freezing point. 1963 G. L. Pickard Descriptive Physical Oceanogr. vi. 89 A serious source of error with the airborne radiation thermometer is the variability in signal. 1998 Functional Ecol. 12 474/1 Leaf temperature, measured by an infra-red radiation thermometer. < as lemmas |
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