| |
| 争光—10型取样钻机 |
| | 1973(3) [摘要(1359)] [PDF 933.32 K (313)] [HTML] |
| | |
| 小钻机发挥大作用——推广取样钻的体会 |
| | 1973(3) [摘要(1120)] [PDF 999.93 K (321)] [HTML] |
| | |
| 推广使用争光—10型取样钻机情况 |
| | 1973(3) [摘要(1151)] [PDF 377.32 K (334)] [HTML] |
| | |
| “穷棒子”精神结硕果——利用小电炉回炼废钢材 |
| | 1973(3) [摘要(1140)] [PDF 330.16 K (276)] [HTML] |
| | |
| 金刚石钻进小结 |
| | 1973(3) [摘要(1177)] [PDF 527.93 K (309)] [HTML] |
| | |
| 关于提高70号钢钢粒质量的研究试验 |
| | 周韶光,耿瑞伦 |
| | 1973(3) [摘要(1185)] [PDF 4.43 M (306)] [HTML] |
| | |
| 液压射流冲击回转钻具研究试验动态 |
| | 1973(3) [摘要(1172)] [PDF 76.03 K (350)] [HTML] |
| | |
| 某矿区防、治孔斜情况 |
| | 1973(3) [摘要(1134)] [PDF 2.52 M (316)] [HTML] |
| | |
| 薄片硬合金自磨钻头的初步研究 |
| | 1973(3) [摘要(1094)] [PDF 265.91 K (329)] [HTML] |
| | |
| 小口径测斜仪改制成功 |
| | 1973(3) [摘要(1021)] [PDF 75.77 K (308)] [HTML] |
| | |
| 关于无炮泥爆破方法的探讨 |
| | 1973(3) [摘要(1081)] [PDF 2.02 M (295)] [HTML] |
| | |
| 二硫化钼润滑介绍 |
| | 1973(3) [摘要(1051)] [PDF 145.74 K (328)] [HTML] |
| | |
| 井底液压发动机“戴纳钻” |
| | М·Т·古斯曼 |
| | 1973(3) [摘要(1068)] [PDF 1.87 M (289)] [HTML] |
| | |
