self-holding contact

电梯专业英语词汇（五） ... self-hold relay 自保式继电器 self-holding contact 自保式触点 self-induction 自感应 ...

航海及海运专业英语词汇(S3) ... self-heterodyne 自差 self-holding contact 自保持触点 self-holding taper 自动夹紧拔梢 ...

"信号强度... ... "self-hold " 自锁,自[保]持" "self-holding contact " 自持触点" "self-holding push button " 自持按钮" ...