单词 | slitless |
释义 | ˈslitless, a. [f. slit n.] Of a spectroscope: Made without the usual slit for admitting the light.
1881C. A. Young Sun 235 By examining the eclipse with a so-called slitless spectroscope. 1885Clerke Pop. Hist. Astron. 223 Making separate trial of a ‘slitless spectroscope’ devised for the occasion. |

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