铺路碎石,喷镀金属;
high-power switch mode power supply ( smps) which is in demand more and more is widely employed in many fields, such as electrochemistry, vacuum sputtering and metalling, dc motor velocity control, welding and cutting and so on.
大功率开关电源广泛应用在电化学、真空溅射镀膜、直流电机调速以及焊接切割等领域且要求越来越高。
the electrode structure used for ion diffusion metalling on the inner surface of the tube parts was obtained.
通过实验证实,管状零件内表面离子渗金属的电极结构是正确的。
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