| 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. |