【简答题】Spot welding robot is the auto production line, improve production efficiency and raise the quality of welding car, 1 the labor intensity of a robot. It is characterized by two 2 of robots for spot we...
【单选题】In ___________, the heat required for welding is generated through friction at the interface of the two components being joined. In friction welding, one of the components remains stationary ( 固定的) wh...