There are many factors which affects on service life of perforation equipment.
影响穿孔设备使用寿命的因素很多,在实际操作中,提高穿孔设备使用寿命也是取决于多方面因素的。
card reader-punch equipment
卡片阅读-穿孔设备
A keyboard-actuated punch that punches holes in a data medium.
一种由键盘操纵的穿孔设备，用以在数据载体上进行穿孔。同keyboardpunch。
current system punch output device
现行系统穿孔输出设备
A device that punches.
穿孔用的一种设备。
punched card accounting machine
穿孔卡片会计机械设备
punched card data processing equipment
穿孔卡片数据处理设备
word processing equipment with punched tape
带穿孔带的字词处理设备;带穿孔纸带的字词处理设备
A device that do gang punch.
一种可以进行群穿孔的设备。
word processing equipment with edge-punched card
边沿穿孔卡片字词处理设备
Pertaining to equipment or methods that transmit data from either magnetic tape or punched tape to punched cards.
用以修饰或说明将磁带或穿孔带上的数据传送到穿孔卡片上的设备或方法。
A device that collates, merges, or matches sets of punched cards or other documents.
一种整理、合并或比较一组穿孔卡片或其它文档的设备。
Of equipment; without a motor and intended for hand operation(" a manual keypunch" ;" a manual typewriter" ).
对设备而言，指无马达和用手操作的设备（如人工键穿孔机、人工打字机）。
In paper tape equipment, a tape punch operated by a keyboard, by received signals or by another unit.
在纸带设备中,用键盘或接收到的信号或由另一台设备操作的纸带穿孔机。
CAD Illustrative Method for Groove Opening Value of Rotary Piercing Mill
计算机辅助设计(cad)图解斜轧穿孔孔型开度值
rotary wash-boring equipment
旋转式水冲钻孔设备
inspection hole for industrial electric heating equipment
工业电热设备观察孔
Analysis on the Roller Cone Angle Design of Smooth Rolling of Skew Rolling Piercer
斜轧穿孔机轧辊辗轧锥角的设计分析
Design and Research on the Transparent Absorbing Structure of Microperfrated Panel;
通透微穿孔板吸声结构的设计及研究