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单词 singing lamp
释义

> as lemmas

singing (arc) lamp
singing (arc) lamp n. (see quot. 1883).
ΚΠ
1883 W. S. Gresley Gloss. Terms Coal Mining Singing Lamp, a safety lamp which, when placed in an atmosphere of explosive gas, gives out a peculiar sound or note.
1903 Work 2 May 203/1 A singing arc lamp, invented by a German named Simon, of Frankfort.
extracted from singingadj.
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