利用液相浸渍法制备了含有难熔金属化合物的C/C复合材料，通过金相显微镜、面扫描观察了难熔金属颗粒在材料中的分散状态；
C/C composites with refractory metal compounds were prepared by liquid impregnation, the distribution state of refractory metal grain was observed by optical microscope and surface scan.
理论分析和试验结果表明，液体在受热的水平金属丝网管壁面能够形成比较均匀的上升薄液膜，可以起到强化传热传质的作用。
The formation of the rising liquid film on the surface of a horizontal metallic mesh tube in the presence of the temperature field was investigated.
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