| 单词 | floating collimator |
| 释义 | > as lemmasfloating collimator floating collimator n. (see quot.). ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > other telescopes polemoscope1668 finder1738 night-glass1758 collimator1825 floating collimator1833 lookdown1865 guiding telescope1897 autocollimator1903 kinetheodolite1941 finderscope1946 satellite telescope1951 scotoscope1964 starlight scope1964 1833 J. F. W. Herschel Astronomy ii. 95 Thefloating collimator..is..a small telescope..fastened horizontally..on a flat iron float which is made to swim on mercury. < as lemmas |
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