| 单词 | pyrheliometer |
| 释义 | pyrheliometer —pyrheliometric /puyeur'hee lee euh me"trik, pir'-/, adj. /puyeur'hee lee om"i teuhr, pir'-/, n. Astrophysics. an instrument for measuring the total intensity of the sun's energy radiation. [1860-65; PYR- + HELIO- + -METER] |
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