门禁；门卫

advance guard───军队前卫，先头部队；先锋派

entrance exam───入学考试

entrance exams───入学考试（entranceexam的复数）

entrance hall───n.门廊

entrance ramp───入口坡道；驶入匝道

advance guards───军队前卫，先头部队；先锋派

entrance fee───入场费

The entrance guard lives on that salary and can hardly keep the wolf from the door.───守位靠着仅有的一点工资渡日，已很难再维持下去。

The entrance guard cast a suspicious eye at me.───守门的卫兵用怀疑的眼光看我。

of the development of Entrance Guard Sytem, the excellence and action principle of promixity card is introduced.───门禁技术的发展出发，介绍了感应卡的优点及其动作原理。

At present all what times ~ still have entrance guard!───现在都什么时代了~还有门禁!

The face recognition can be applied to: intelligent entrance guard system, computer security, machine vision, medical diagnostic system and 3-D animation etc.

The design of the entrance guard checkattendance system based the on contactless IC card is introduced.

The entrance guard lives on that salary and can hardly keep the wolf from the door.

And the biometric identification entrance guard system includes fingerprint system, iris system, palm print system and voice system and so on.

Smart Image Card(SIC)is a new kind of feature information carrier. This paper discusses the mapping mechanism in which SIC card is used in the intelligent entrance guard system.