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化学气相迁移
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化学气相迁移
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化学气相迁移
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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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forest biomass
forest biomass fuel
Forest Carbon Partnership Facility
Forest Carbon Sinks
forest carbon trading
forest certification
forest certification standard system
Forest Change Detection with Remote Sensing
forest change detection with remote sensing
Forest China
forest climate
forest community
forest concert
forest conflict management
forest conservation
forest coverage rate
forest culture
forest culture base
forest culture festival
forest cutting mountain areas
forest cutting to build palace
forest disease
forest disease and pest disasters in China
forest disease disasters in China
forest diseases and pests
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