电路中采用了间歇电流装置，使抛光条件更易于控制。
The intermittent current device has been employed in the electric circuit so that the control of the polishing condition becomes more feasible.
设有推力电流装置，不易发生引弧不良和焊条粘附现象。
Possess the arc push current device. It's not easy to change.
这些断路器应在每极上装有额定值从80%至160%可调的长延时过电流装置。
These circuit breakers should have the long time-delay over-current devices on each polar whose rated value can be adjusted from 80% to 160%.
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