| 单词 | dew-cap |
| 释义 | > as lemmasdew-cap dew-cap n. (see quot.). ΚΠ 1879 R. A. Proctor Pleasant Ways Sci. xvi. 364 A cylinder of tin or card, called a dew-cap, is made to project beyond the glass [of the telescope], and thus to act as a screen, and prevent radiation. < as lemmas |
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