Low Frequency Current

• 低频电流

Low Frequency Current的用法和样例：

例句

1. A transmitter toroid induces a low-frequency current in the drillstring, which flows out of the bit and returns farther up the string.
   发射线圈在钻柱内感应出低频电流，从钻头流出，在钻柱上部返回。