| 单词 | spark source |
| 释义 | > as lemmasspark source spark source n. ΚΠ 1944 Jrnl. Optical Soc. Amer. 34 773/2 A type of interrupted spark source involving no mechanical parts has been developed for use in quantitative spectrographic analysis. 1956 Nature 4 Feb. 222/1 A high-precision spark source and an optical arrangement containing a rotating mirror are needed. < as lemmas |
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