The primary ultrafine carbon powders were prepared by sol-gel supercritical fluid drying method using different raw materials.
采用不同的原料，利用溶胶-凝胶超临界流体干燥法制得了超细炭原粉。
The instrument and theory of mould-method are briefly introduced and the principal process are described. Supercritical drying and conventional drying are used to dry the prepared films.
描述了利用模具法制备气凝胶薄膜的主要过程，并利用常压干燥和超临界干燥两种方法对模具中湿凝胶产物进行了处理。
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