guardsn.警卫;狱吏;看守;护卫队名词guard的复数形式.
guardv.看守;守卫;保卫;提防n.警戒;哨兵;防护装置;警卫;【体】后卫
guarded plate method保护平板法
guard ring electrode护环电极
guard against Russia防俄
guard against danger防止危险
guard-ring detector保护环探测器
guard ring transistor保护环晶体管
guarding arrangements防护措施
guard against disease预防疾病
guard against a flood防洪
guarded communication受保护的通信