feed circuit meaning in Chinese

补油回路
供电电路
馈电电路
原料系统

Study on synchronous wire feed circuit of arc spraying
电弧喷涂同步送丝电路的研究
Tl494 - based pwm constant - speed wire - feeding circuit
等速送丝电路的设计
Besides all these , an automatic wire - feeding circuit and its control system are designed for the welding machine is semi - automatic arc welder
此外，由于焊机为半自动焊机，论文中设计了焊丝的自动送进系统及其调速控制系统。