01_A is for Ampere - 电流 02_B is for Battery - 电池 03_C is for Capacitor - 电容 04_D is for Diode - 二极管 05_F is for Frequency - 频率 06_G is for Ground - 接地 07_H is for Hertz - 赫兹 07_H is for Hertz - 赫兹 08_I is for IC - 集成电路 09_L is for LED - 发光二极管 10_O is for Ohm - 欧姆 11_P is for PCB - 印刷电路板 12_M is for MOSFET - mos管 hardi' IOT