| 单词 | refracting telescope |
| 释义 | > as lemmasrefracting telescope refracting telescope n. = refractor n. 2b. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > refracting telescopes refracting telescope1728 refracter1738 refractor1747 1672 Philos. Trans. (Royal Soc.) 7 4004 This Excellent Mathematician having given us..an account of the cause, which induced him to think upon Reflecting Telescopes, instead of Refracting ones.] 1728 Philos. Trans. 1726–7 (Royal Soc.) 34 87 A Refracting Telescope of 15 Feet. 1870 Daily News 8 Oct. 2/1 A magnificent refracting telescope, with an object-glass of 25 inches diameter. 1999 L. Kennedy All in Mind vii. 154 Galileo..perfected a refracting telescope through which he became the first to observe that the moon supported mountains and valleys. < as lemmas |
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