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nonferrous metals industry in the world
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nonferrous metals industry in the world
Encyclopedia
工学
﹝冶金工业﹞
释
nonferrous metals industry in the world
世界有色金属工业
有色金属的地质勘探、采矿、选矿、冶炼和加工等工业。是从开采与利用金、银和铜、铅、锌等逐步发展起来的。20世纪以来,电力、交通运输、航空航天、家用电器、军事工业以及电子、信息等高新技术产业的发展,引起铝、镁等轻金属,镍、锌等重金属以及稀有稀土金属等工业也快速发展起来。
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Drygalski crater
dry gangrene
dry gas
dry granulation
dry grinding
dry H bomb
dry heat shrinkage temperature
dry heat sterilization
dry hot sterilization devices
dry-hot valley
dry-hot wind
dry-hot wind of wheat
dry hydrant system
dry ice
dry ice machine
drying
drying agent
Drying device for print
drying effiency of mineral processing products
drying equipment
drying hair towel
drying in the shade room
drying method
drying of mineral processing products
drying of moulding body
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