1. 锁定插销：ddirectlighting直接照明 | deadbolt锁定插销 | deaddoor假门
2. 锁扭：deadbeat 不振荡的 | deadbolt 锁扭 | deadbornstillborn 死产的
3. 固定栓：D-day最后迁出期限(扩展重建计划清拆日期(清拆小贩摊档) | deadbolt固定栓 | deadenddrainage死端;封闭尽处(渠道)
4. 没有弹簧的锁紧螺栓：deactivator 减活剂,钝化剂 | deadbolt 没有弹簧的锁紧螺栓 | deadening 消音,吸音;减弱
noun
1. the part of a lock that is engaged or withdrawn with a key
Synonym: bolt