keyern.电键器；调制器keyn.键；关键；钥匙；答案adj.关键的；主要的vt.键入；用钥匙锁上；为 ... 调音key sensitive point关键敏感点Key-point control关键点控制Key guessing attack密钥猜测攻击key-to-cassetten.键盘盒式磁带输入机key members of NATO北约的关键成员keying relationship键标关系keyed direct access关键字直接存取key word in context题内关键词Keyphrae extraction关键词提取key position effect枢纽效应