为了熔化进料，可用射频感应加热或电阻加热法。
To melt the charge radio frequency induction heating or resistance heating have been used.
为了熔化进料，可用射频（感应加热）或电阻加热法。
To melt the charge, radio frequency(induction heating)or resistance heating have been used .
在天然气处理厂内对设备和管道系统焊缝的热处理一般采用电阻加热法。
In natural gas treatment plant, generally used is resistance heating method for heat treatment in welding lines of equipment and pipeline systems.
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