卡杆现象是穿孔设备常见的故障之一，是影响液压凿岩钻机高效率、高质量穿孔的重要原因。
The sticking steel is one common trouble of drilling equipment and an important cause effecting the high efficiency and high quality drilling of hydraulic drill.
JosephMarieJacquard创造了一种可以附加在织布机上的设备，它使用一个打孔模式(很像早期计算机的穿孔卡片)编织图案。
Joseph Marie Jacquard created a device which could be affixed to looms, which used a pattern of holes, much like early computer punched CARDS, to direct the textile design.
一种可以进行群穿孔的设备。
同时也造成注水系统腐蚀、结垢严重，地面注水管网穿孔频繁，高压注水设备、计量装置故障增多。
At the same time, serious corrosion and scale buildup of water injection system, leak of water pipeline and high-pressure water injection equipment fault rate increase would happen.
测定环境放射性物质用地下水井，上层滞水带监测装置，地上凿穿孔及其他设备的交付使用的标准指南。
Standard guide for decommissioning of ground water wells, vadose zone monitoring devices, boreholes, and other devices for environmental activities.
读入或感知穿孔纸带上的穿孔模式，将它所代表的数据转换成电信号的一种设备。
A device that reads or senses the hole patterns in a punched tape, transforming the data from the hole patterns to electrical signals.
一种整理、合并或比较一组穿孔卡片或其它文档的设备。
A device that collates, merges, or matches sets of punched CARDS or other documents.
主要介绍了动态平稳的二辊卧式穿孔机的技术性能、设备结构及其使用效果。
Introduced in the article are the technical features and equipment structure of the dynamically stable 2-roll horizontal piercing mill as well as its operation results.
主要介绍了动态平稳的二辊卧式穿孔机的技术性能、设备结构及其使用效果。
Introduced in the article are the technical features and equipment structure of the dynamically stable 2-roll horizontal piercing mill as well as its operation results.
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