鎖具(ju)是(shi)(shi)指起(qi)封閉(bi)作用(yong)(yong)(yong)(yong)(yong)的(de)器(qi)具(ju)，它(ta)包括鎖、鑰匙及(ji)(ji)其附件，一(yi)般解(jie)釋為(wei)必須用(yong)(yong)(yong)(yong)(yong)鑰匙方能(neng)開(kai)(kai)(kai)脫的(de)封緘器(qi)，現(xian)在，鎖具(ju)除用(yong)(yong)(yong)(yong)(yong)鑰匙開(kai)(kai)(kai)啟(qi)外，還可以用(yong)(yong)(yong)(yong)(yong)光、電、磁、聲及(ji)(ji)指紋等指令開(kai)(kai)(kai)啟(qi)。鎖具(ju)不單是(shi)(shi)防護(hu)用(yong)(yong)(yong)(yong)(yong)品，還具(ju)有管理和裝(zhuang)飾的(de)作用(yong)(yong)(yong)(yong)(yong)。在國際交往中也(ye)有一(yi)種禮儀，用(yong)(yong)(yong)(yong)(yong)贈送象征性的(de)...