短语
备用钥匙
spare key
;
false key
;
The Extra Key
;
emergency key
专用钥匙开关
Key-Operated Switches
万用钥匙
Opasskey
挂钥匙用钥匙板
Keyboards for hanging keys
;
key plate for hanging keys
客用钥匙
Guest Key
专用钥匙
Dedicated key
;
special key
使用钥匙
khazard cell keys
;
key
备用钥匙架
Extra-key Rack
公用钥匙加密
public key encryption