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crenulation n
gen. 叶边等的细圆齿; 微钝锯齿; 皱缩
oil 细褶皱
tech. 小圆齿; 微钝锯齿状
crenulation
: 11 phrases in 5 subjects
Desert science1
Earth sciences2
Hydroelectric power stations1
Oil / petroleum2
Technology5