论文部分内容阅读
35-1从下列词语中选择适当的词语,填入下文的括号内: (1)防触电装置是使不发生电弧时的焊钳和( )的电压低于交流弧焊机的( )电压,为防止焊工触电而装设的装置。 (2)对于既装有遥控装置又装有防触电装置的交流弧焊机,如果切断电弧后不到( )秒的时间内,想用遥控( )调整电流,就有将其( )的危险。词语:负载空载 10 烧损冷却焊条母材夹子操作。 35-2 从下列词语中选择适当的词语,填入
35-1 Select the appropriate words from the following words and put them in brackets below: (1) The device protected against electric shock is such that the voltage of the welding clamp and () in the absence of an arc is lower than the voltage of the AC arc welding machine, Equipment designed to prevent electric shock to welders. (2) For AC arc welders equipped with remote control and electric shock prevention device, if the remote control () is required to adjust the current within () seconds after the arc is cut off, . Word: Load no load 10 Burn-down Cooled electrode base material Clip operation. 35-2 Select the appropriate words from the following words, fill in