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| 适于钻进黄土砾岩层的内外阶梯肋骨钻头 |
| | 余冰 |
| | 1960(5) [摘要(964)] [PDF 507.06 K (275)] [HTML] |
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| 牙钳上镶焊碎合金好使耐用 |
| | 翟健绪 |
| | 1960(5) [摘要(1049)] [PDF 507.06 K (299)] [HTML] |
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| 7呎车床车318毫米管材 |
| | 赵仕雄 |
| | 1960(5) [摘要(1013)] [PDF 480.52 K (254)] [HTML] |
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| 用废钻杆作油盃的方法 |
| | 成立 |
| | 1960(5) [摘要(907)] [PDF 480.15 K (254)] [HTML] |
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| 把竹筒塞入普通胶皮管作吸水管的方法 |
| | 1960(5) [摘要(1064)] [PDF 1.94 M (256)] [HTML] |
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| 广泛运用抛掷爆破 |
| | 1960(5) [摘要(890)] [PDF 443.24 K (280)] [HTML] |
| | |
| 槽探定向抛掷爆破 |
| | 1960(5) [摘要(931)] [PDF 1.16 M (269)] [HTML] |
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| 独头巷道采用定向抛掷爆破倒掌子刘桂和机掘队实现开门红 |
| | 覃厚光 |
| | 1960(5) [摘要(851)] [PDF 544.71 K (240)] [HTML] |
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| 大型葫芦炮爆破 |
| | 1960(5) [摘要(998)] [PDF 1.37 M (262)] [HTML] |
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| 槽探“土中爆破”的经验 |
| | 王建邦 |
| | 1960(5) [摘要(954)] [PDF 1.65 M (302)] [HTML] |
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| 半机械化广泛运用 爆破技术一再革新 贵州苗岭队大闹革新取得优异成绩 |
| | 贵州地质局探矿工程处 |
| | 1960(5) [摘要(851)] [PDF 2.31 M (672)] [HTML] |
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| 冻土层采用爆破法挖槽效率提高三倍以上 |
| | 杨滨荪 |
| | 1960(5) [摘要(796)] [PDF 382.42 K (649)] [HTML] |
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| 深孔无套管钻进月进千米 |
| | 张庆元 |
| | 1960(5) [摘要(866)] [PDF 1015.02 K (737)] [HTML] |
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| 谈密集式硬质合金钻头 |
| | 刘广志 |
| | 1960(5) [摘要(1017)] [PDF 2.37 M (249)] [HTML] |
| | |
| 试用投入式测斜仪发现的问题和解决办法 |
| | 温才通 |
| | 1960(5) [摘要(986)] [PDF 769.99 K (312)] [HTML] |
| | |
| 仿瑞式提引水龙头 |
| | 1960(5) [摘要(987)] [PDF 947.27 K (354)] [HTML] |
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| 井内电缆事故的处理与预防 |
| | 波浪 |
| | 1960(5) [摘要(939)] [PDF 1.09 M (274)] [HTML] |
| | |
| 谈谈铀矿勘探中的卫生常识 |
| | 苏万年 |
| | 1960(5) [摘要(915)] [PDF 956.39 K (284)] [HTML] |
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| 用热河砂进行铁砂回火的方法 |
| | 1960(5) [摘要(1030)] [PDF 1.44 M (336)] [HTML] |
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