| 单词 | radio flux |
| 释义 | > as lemmasradio flux radio flux n. ΚΠ 1951 Monthly Notices Royal Astron. Soc. 111 366 The intensity of the radio flux from M31 observed on the Earth at a wavelength of 1·89 metres is 10−24 watts/square metre/c.p.s. 1992 S. P. Maran Astron. & Astrophysics Encycl. 630/1 The Wolf (or Zürich) number is still the reference index of solar activity although other indices (e.g., daily measurements of the 2800-MHz solar radio flux) are of increasing usefulness. 2003 Philos. Trans. (Royal Soc.) A. 361 96 Other indicators of solar activity..include sunspot numbers, solar diameter, solar radio flux at 10.7 cm and the aa index, which gives a measure of the magnitude of the solar magnetic field at the Earth. < as lemmas |
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