您要查找的是不是：
- card punched unit 卡片穿孔装置
- card punch unit 卡片穿孔机
- The standard output unit has the teletype, the tape perforator, the card punch, the line printer as well as the drafting machine and so on. 穿孔机 -大家能帮我翻译一下这段文章吗? 穿孔机 The computer operation result is outputs by the output unit.
- A card punched accidentally or intentionally with holes in excess of the hole patterns of the character set used. 一种穿孔卡片，其上偶然地或故意地穿上了一些超出所用字符集孔模式的孔。
- Punch card: Card punched with a pattern of holes encoding data for storage and reading. 穿孔卡:依照固定模式打孔，作为代码，贮存和阅读资料的卡。
- This company spent a year developing this card punching system buses. 这家公司历时一年才开发出这套公共车刷卡系统。
- Pneumatic Device Computer Sprocket holes punch unit NC 电脑用纸打孔设备
- The conductor punched his bus ticket. 售票员用剪票夹在他的汽车票上打孔。
- He punched out and went home at six o'clock. 她六点钟打卡下班回家了。
- The punch in the stomach completely winded me. 我肚子上挨了一拳一时完全喘不过气来。
- The luminous intensity on unit area. 单位面积上的发光强度。
- It was vodka, and it packed quite a punch. 这是伏特加酒，它有强烈的刺激作用。
- A perforation,as in a punched card or paper tape. 在穿孔卡片或纸带上穿孔的一种动作。
- He laid the attacker low with a punch to the jaw. 他一拳击中攻击他的人的下颚，把他打倒在地。
- The family is the smallest social unit. 家庭是社会最小的单位。
- The punch was aimed at his opponent's head. 那一拳是冲著对手的头打去的。
- The coach saved his star player for a trump card. 教练保留他的明星选手，作为他的王牌。
- Hughes punched out at five o'clock every afternoon. 休斯每天下午5点钟打卡下班。
- Have it charged to my credit card. 把它记在我的信用卡的帐号里。
- Pressure is force per unit area. 压力就是电单位面积上的力。
