It mainly consists of blind cap, blind base, unblanking mechanism, seal ring, tumbler, safety lock plate, pressure relief.

它主盲板盖、盲板座、开启机构、密封圈、转臂、安全锁板、压装置构成。

Carry on a clandestine love affair men and women seeks pleasure in course of in the woman , the entrance door sound having key unblanking suddenly.

偷情男女正在女人家中寻欢作乐，门有钥匙开锁的声音。