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self-sharpening [ˌsεlf'ʃɑːpənɪŋ, -'ʃɑːrp-]
gen. 自磨; 自锐
oil 自动磨尖
tech. 自锐性; 自动磨锐
self sharpening
mech. 钻头齿的自锐作用
self-sharpening: 13 phrases in 5 subjects
Agriculture2
Drilling2
Mechanics2
Oil / petroleum1
Technology6

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