| 单词 | gas bleaching |
| 释义 | > as lemmasgas bleaching gas bleaching n. now historical and rare bleaching of fabric, paper, etc., by fumigation with sulphur dioxide or chlorine gas; cf. sulphuring n. 2. ΚΠ 1815 Literary Panorama Sept. 941 It appears, that gas-bleaching was now adopted in various parts of France, and that the chief obstacle to its being brought into general use was the want of a convenient and safe apparatus for the production of the oxymuriatic acid. 1876 Textile Colourist 2 246 The ancient process of hanging up [the wool] in a room in which sulphur is burned... This is usually known as gas bleaching. 1979 Business Hist. Rev. 53 202 Bleachers experimented with gas bleaching..before bleaching powder was invented. < as lemmas |
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