keyedadj.(乐器)有键的； <音>定好音调的； 与 ... 相宜的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 Influence Factors关键影响因素key-specified model键刻划模型, 键指定模型key-factor analysis关键因子分析key sequence boundary关键界面key factor to success成功要因key specified queries指定密钥询问key working procedure关键工序key period of climate气候关键期key phrases extraction主题词提取keyway planing machine键槽刨床

1. Another key item on the touch screen is your e-mail system.
   另一个关键项目的触摸屏是您的电子邮件系统。
2. It is generally recognized that the seepage monitoring is one of key items of dam safety monitoring.
   渗流监测是大坝安全监测的一个关键项目，对保障大坝安全具有重要意义。
3. We must concentrate on key projects in agricultural science.
   切实组织农业科学重点项目的攻关。
4. Efforts should be made to do a good job in key construction projects.
   搞好重点项目建设。