闭环控制

当信号切换操作时，在一定时间内以默认音量值为参照，由单片机发出电视接收机音量调节编码，实现电视伴音音量闭环调控，调控结束后恢复开环形式。

covalently closed circular DNA, cccDNA

closed-end fund

closed-loop power-assisted control【自】 电

closed chain driving sprocket【矿】

closed fracture (fracture ) fracture (fracture )

stabilisation of open loop or closed loop

closed-loop control system

stove, closed with fuel storage in multiple auxiliary hoppers