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词汇 drummond light
词源

Drummond light n.

"calcium light, torch that burns calcium oxide (lime) and gives off intense white light," 1854, named for Scottish engineer Capt. Thomas Drummond, R.E., (1797-1840), who invented it c. 1825.

updated on October 10, 2017

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更新时间:2025/5/2 0:33:28