| 单词 | hand spectroscope |
| 释义 | > as lemmashand spectroscope hand spectroscope n. an optical instrument in the form of a small tube containing lenses and prisms, which can be held in the hand to show the composition of the light from a source. ΚΠ 1868 Proc. Royal Soc. 1867–8 16 241 The special suitability of this apparatus, as a hand-spectroscope,..induces me to offer a description of it to the Royal Society. 1933 S. W. Cole Pract. Physiol. Chem. (ed. 9) xi. 276 If a powerful illuminant is used the spectrum of reduced cytochrome can be observed with a hand spectroscope. 2008 A. Thomas Gemstones 124 The hand spectroscope may reveal a single clear-cut absorption line at 5060Å. < as lemmas |
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