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abrasives and abrasive products
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abrasives and abrasive products
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工学
磨料磨具
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abrasives and abrasive products
磨料磨具
磨料和磨具的总称。磨料是在磨削、研磨、抛光、钻切等机械加工过程中起切削作用的颗粒状或粉粒状无机非金属晶体材料。磨具是以磨料为核心切削材料制成的用于磨削、研磨、抛光、钻切等加工的定形或不定形复合材料工具。
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peanut mosaic disease
peanut mottle disease
peanut oil
peanut picker
peanut planting system
peanut processing
peanut protein
peanut root knot nematodes
peanut rust
peanut scab
peanut shoot wilt disease
peanut southern blight
peanut stem nematode disease
peanut storage
peanut stripe disease
peanut testa nematode disease
peanut worm
peanut worms
peanut yellow mosaic disease
P. E. Appell
P.-E. Appell
P.-E. Appell (1855—1930)
pear
pear black rot
pear black spot
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