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stage crushing
agric. 分级压碎
met. 分段破碎
tech. 逐级扎碎; 逐级破碎; 石料分级粉碎; 分级破碎; 分级粉碎
stage crushing: 17 phrases in 3 subjects
Explosives and Explosive Ordnance Disposal1
Metallurgy5
Technology11