plaster of paris 的翻译为熟石膏,我想问英语的来历是什么呢?为什么有巴黎paris这个单词呢?
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plaster of paris 的翻译为熟石膏,我想问英语的来历是什么呢?为什么有巴黎paris这个单词呢?
Plaster of Paris,or simply plaster,is a type of building material based on calcium sulfate hemihydrate (gypsum),nominally CaSO4 · 0.5H2O.It is created by heating gypsum to about 150ºC.
CaSO4 · 2H2O → CaSO4 · 0.5H2O + 1.5H2O (released as steam).
A large gypsum deposit at Montmartre in Paris is the source of the name.(The place that makes this plaster originated from Paris).
CaSO4 · 2H2O → CaSO4 · 0.5H2O + 1.5H2O (released as steam).
A large gypsum deposit at Montmartre in Paris is the source of the name.(The place that makes this plaster originated from Paris).
plaster of paris 的翻译为熟石膏,我想问英语的来历是什么呢?为什么有巴黎paris这个单词呢?
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