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alumina abrasive
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alumina abrasive
Encyclopedia
工学
普通磨料
释
alumina abrasive
刚玉磨料
以a型三氧化二铝为主晶相的普通磨料。简称刚玉。旧莫氏硬度8.9~9.1,新莫氏硬度12。
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Diseases of Poultry
diseases of skin appendages
diseases of standing milk-vetch
Diseases of Swine
diseases of Vicia
disease spectrum
disease surveillance
Disease Theory
disease trends
diseconomies of agglomeration
disenchantment
disengagement
disengagement theory
disequilibrium
disequilibrium syndrome
disfigure
disfunctional
disguise
Disguised as a Fish
disguised at low-level handwriting
disguised unemployment
disgyration
DISH
dish
dishabituation
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