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化学气相迁移
释义
化学气相迁移
Encyclopedia
理学
化学气相迁移
释
chemical vapor transport
化学气相迁移
一个共同特征的异相反应,凝聚态物质(通常是固体粉体)(A)本身挥发压力不足,但在气相反应剂(B)的存在下,B与A封闭在同一管子中,加热时B与A反应,生成气相的AB,当AB迁移至不同温度或压力的管子的另一处时,AB分解,A再以晶体的形式沉积,达到物质的提纯或改变物理状态(或二者兼有)的反应。
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feasible program
feasible region
feasible restriction
feasible set
feasible solution
feasible vector
feasibly solvability
Feast
Feast of Christ the King
Feast of the Annunciation
Feast of the Ascension
Feast of the Assumption of Mary
Feast of the Circumcision of Christ
Feast of the Holy Family
Feast of the Presentation of Jesus Christ
Feast of the Presentation of Mary
Feast of the Purification of the Blessed Virgin Mary
Feast of the Transfiguration
feather
feather cock's comb
feather cockscomb seed
feather decoration media
feathered space
feather germ
feathering
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