標(biāo)題: Titlebook: New Mining Tools and Methods for Roadheader Mining Heads; Krzysztof Kotwica Book 2022 The Editor(s) (if applicable) and The Author(s), und [打印本頁] 作者: Nixon 時(shí)間: 2025-3-21 19:25
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作者: BARGE 時(shí)間: 2025-3-21 20:56 作者: Arboreal 時(shí)間: 2025-3-22 00:57 作者: 切碎 時(shí)間: 2025-3-22 06:43 作者: 不安 時(shí)間: 2025-3-22 12:26
1974 and 1976), which was sold to the public as a nonpartisan act of good government reformism actually reinforced the dominance of the two parties. While focused primarily on the American experience, the book978-1-4419-1891-8978-0-387-09821-0Series ISSN 0924-4700 Series E-ISSN 2731-5258 作者: Femine 時(shí)間: 2025-3-22 13:06
Krzysztof Kotwica 1974 and 1976), which was sold to the public as a nonpartisan act of good government reformism actually reinforced the dominance of the two parties. While focused primarily on the American experience, the book978-1-4419-1891-8978-0-387-09821-0Series ISSN 0924-4700 Series E-ISSN 2731-5258 作者: CYN 時(shí)間: 2025-3-22 19:03
Krzysztof Kotwica 1974 and 1976), which was sold to the public as a nonpartisan act of good government reformism actually reinforced the dominance of the two parties. While focused primarily on the American experience, the book978-1-4419-1891-8978-0-387-09821-0Series ISSN 0924-4700 Series E-ISSN 2731-5258 作者: 字的誤用 時(shí)間: 2025-3-22 22:44 作者: 過份艷麗 時(shí)間: 2025-3-23 03:19 作者: 逃避責(zé)任 時(shí)間: 2025-3-23 08:21 作者: Asparagus 時(shí)間: 2025-3-23 11:52 作者: deforestation 時(shí)間: 2025-3-23 15:02 作者: hysterectomy 時(shí)間: 2025-3-23 18:22
The Crown Pick as an Alternative for the Conical Pick,ive for conical picks. The wear of the tool was slight. The only disadvantage was the problem with the steering system not allowing for gentle and slow control of mining head movements. The results of industrial trials also confirmed this inconvenience.作者: 爆炸 時(shí)間: 2025-3-23 23:07
Lubricated Holder for Conical Pick,lution has been confirmed. Comparing the number of rotations in the holder and the size and type of the pick wear in the case of the conical pick mounted in the standard holder, holder with high-pressure water jet assistance and lubricated holder, the most favourable results were obtained for the pi作者: homocysteine 時(shí)間: 2025-3-24 04:33 作者: CARE 時(shí)間: 2025-3-24 08:34
Summary and Final Comments,ystem, the use of an asynchronous electric motor was assumed for two drive systems of the head body and the plates with disk tools. The comparative simulation tests of the new drive system and original system with independent drives of the head body and discs, were also carried out. The last part de作者: 開始沒有 時(shí)間: 2025-3-24 11:56
aders instead of standard mining heads.?.This book can be used by employees of the mining industry, manufacturers of mining tools, machines and equipment, as well as employees and students of mining and mechanical faculties of technical universities..978-3-030-96396-5978-3-030-96394-1作者: –吃 時(shí)間: 2025-3-24 15:38 作者: 剛毅 時(shí)間: 2025-3-24 20:20
New Mining Tools and Methods for Roadheader Mining Heads978-3-030-96394-1作者: Noctambulant 時(shí)間: 2025-3-25 01:14 作者: indecipherable 時(shí)間: 2025-3-25 04:01
Krzysztof Kotwicapared to promote to mainstream media in a U.S. election year.Stifling Political Competition examines the history and array of laws, regulations, subsidies and programs that benefit the two major parties and discourage even the possibility of a serious challenge to the Democrat-Republican duopoly. Th作者: 接合 時(shí)間: 2025-3-25 10:27
Krzysztof Kotwicapared to promote to mainstream media in a U.S. election year.Stifling Political Competition examines the history and array of laws, regulations, subsidies and programs that benefit the two major parties and discourage even the possibility of a serious challenge to the Democrat-Republican duopoly. Th作者: atopic 時(shí)間: 2025-3-25 13:41
Krzysztof Kotwicapared to promote to mainstream media in a U.S. election year.Stifling Political Competition examines the history and array of laws, regulations, subsidies and programs that benefit the two major parties and discourage even the possibility of a serious challenge to the Democrat-Republican duopoly. Th作者: agonist 時(shí)間: 2025-3-25 17:07 作者: Anthem 時(shí)間: 2025-3-25 23:31 作者: Legend 時(shí)間: 2025-3-26 00:54
Krzysztof Kotwicacourage even the possibility of a serious challenge to the Democrat-Republican duopoly. The analysis synthesizes political science, economics and American history to demonstrate how the two-party system is the artificial creation of a network of laws, restrictions and subsidies that favor the Democr作者: Laconic 時(shí)間: 2025-3-26 06:02 作者: 改正 時(shí)間: 2025-3-26 08:27 作者: CRUMB 時(shí)間: 2025-3-26 13:31 作者: 敵手 時(shí)間: 2025-3-26 18:11 作者: VOC 時(shí)間: 2025-3-26 21:36 作者: 假設(shè) 時(shí)間: 2025-3-27 02:11 作者: Lipohypertrophy 時(shí)間: 2025-3-27 06:25 作者: SEEK 時(shí)間: 2025-3-27 11:06
Summary and Final Comments,. The first part describes the concept of the lubricated crown pick. It is the connecting of presented in Chaps. ., . new crown pick and lubricated holder. This solution is additionally equipped with water spraying during the cutting process. The next part presents a proposal for a four-plate mining作者: Discrete 時(shí)間: 2025-3-27 14:05 作者: 協(xié)議 時(shí)間: 2025-3-27 21:05
Problems of Hard Rock Mining Using Cutting Tools,gewear—mainly sparking and dustiness. The methods currently used to limit the problems described above were briefly presented. These are new materials for tools, further protection for the edges of conical picks and the use of high-pressure water spraying.作者: Phenothiazines 時(shí)間: 2025-3-28 01:36 作者: 簡潔 時(shí)間: 2025-3-28 03:03 作者: 狗窩 時(shí)間: 2025-3-28 09:26 作者: Uncultured 時(shí)間: 2025-3-28 10:50
