关断状态 meaning in Chinese

off state
off-state

To reduce power dissipation of the amplifier , a kind of on / off technology is used in the circuit . with a little bias current circuit to control the main bipolar transistor operation , the transistor will be in a state of on / off
采用器件旁路小电流工作电路,实现对低噪声放大器主要工作晶体管的控制,使该晶体管按需要分别处于工作或关断状态,保证了放大器的极低功耗。