| 单词 | gas indicator |
| 释义 | > as lemmasgas indicator gas indicator n. (a) a device for indicating the presence of gas, esp. (in early use) explosive gas in a coal mine; (b) a gas gauge (obsolete rare). ΚΠ 1861 Trans. Inst. Engineers Scotl. 4 Index 184 Mines, Simpson's Gas Indicator for. 1891 U.S. Patent 459,245 2/1 The receiver has..on its face a gas-indicator, and on its side a water-gage. 1908 J. T. Beard Mine Gases & Explosions vii. 313 The device is not all that is required of a gas indicator for mine use. 2007 Herald Express (Torquay) (Nexis) 3 Feb. 2 The gas indicator revealed the levels of carbon monoxide within the property were not harmful. < as lemmas |
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