电磁约束成型技术具有无模、电磁搅拌、强冷却等工艺特点。其凝固过程为一对流传热传质的动态过程。
Electromagnetic constrained forming technology features die-free, electromagnetic stirring and strong cooling, its solidification is a dynamic process of convective heat and mass transfer.
介绍了直接蒸发冷却器的研究情况，主要包括填料的传热传质性能、净化性能及直接蒸发冷却器的应用。
Presents the study status of direct evaporative coolers, including the performance of heat and mass transfer and purification of padding, and the application of direct evaporative coolers.
真空冷却过程是复杂的相变传热传质过程，该过程涉及到扩散、传热、传质和相变等机理。
Vacuum cooling is a complicated heat and mass transfer process supported by various theories such as diffusion, heat transfer, mass transfer and phase change.
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