口令
countersign; password; sign and countersign; watchword
password
口令安全性
password security
口令安全性可选项
password security option
口令保护
password protection
口令保密性
password security
口令改变服务
password changed service
口令卡
password card
口令请求
password requirement
口令请求程序
password requestor
口令文件
password file
口令文件维护
password file maintenance
口令系统
password system
口令信息
password information
开环传递函数
open loop transfer function
可传递的
transmissible
可分传递图
separable transition diagram
精神口腔科学
psychostomatology; stomatapsychology; stomatopsychology
井口
the mouth of a well
井口价格
wellhead price
井口装置
well head equipment