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单词 petrographer
释义 petrographer|pɪˈtrɒgrəfə(r)|
[f. as petrography + -er.]
One versed in petrography; one who scientifically describes or studies rocks.
1881Judd Volcanoes ix. 265 Some petrographers..have maintained the principle [etc.].1882Geikie in Nature XXVII. 26/1 What is known to petrographers by the name of ‘fluxion-structure’.
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