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powder metallurgy anti-friction materials
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powder metallurgy anti-friction materials
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工学
粉末冶金材料
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powder metallurgy anti-friction materials
粉末冶金减摩材料
采用粉末冶金技术制造,具有低摩擦系数的金属材料,或金属和非金属的复合材料。又称烧结减摩材料。
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lithographic technique
lithographied edition
lithography
lithography alignment method
lithography bakeing process
lithography exposure process
lithography illumination system
lithography projection objectives
lithoid outdoor stairs
lithoid tables and chairs
lithological landforms
lithologic characters
lithologic map
lithology interpretation
lithophile elements
lithophilous microbes
lithophotography
lithophysa
lithophyte
lithopone
lithosiderite
Lithosols
Lithosphere
lithosphere
lithosphere-atmosphere thermal coupling
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