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powder sintering
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powder sintering
Encyclopedia
工学
粉末冶金烧结
释
powder sintering
粉末冶金烧结
金属粉末或粉末压坯在低于主要组分熔点的温度(或液相体积分数小于40%的超固相线温度)与保护气氛下通过热激活作用使原子发生迁移,实现粉末颗粒间冶金联结的过程。
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fish resources surverys equipment
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fish scale gelatin
fish scale pit
fish sex determination
fish sex differentiation
fish sex reversal
fish sex-specific molecular markers and sex control breeding
fish sexual dimorphism
fish-shaped tallies of the Tang Dynasty
fish-shaped woodblock
fish shoal detection
fish/shrimp separating device
fish skin costume of Hezhen nationality
fish skinning machine
fish slicing machine
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fish spawning migration
fish spawning patterns
fish spawning stock biomass
fish spleen
fish stem cell
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