VOC 发表于 2025-3-26 21:36:34

http://reply.papertrans.cn/67/6656/665504/665504_31.png

假设 发表于 2025-3-27 02:11:13

http://reply.papertrans.cn/67/6656/665504/665504_32.png

Lipohypertrophy 发表于 2025-3-27 06:25:55

http://reply.papertrans.cn/67/6656/665504/665504_33.png

SEEK 发表于 2025-3-27 11:06:00

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

Discrete 发表于 2025-3-27 14:05:25

http://reply.papertrans.cn/67/6656/665504/665504_35.png

协议 发表于 2025-3-27 21:05:00

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.

Phenothiazines 发表于 2025-3-28 01:36:42

http://reply.papertrans.cn/67/6656/665504/665504_37.png

简洁 发表于 2025-3-28 03:03:04

http://reply.papertrans.cn/67/6656/665504/665504_38.png

狗窝 发表于 2025-3-28 09:26:18

http://reply.papertrans.cn/67/6656/665504/665504_39.png

Uncultured 发表于 2025-3-28 10:50:28

http://reply.papertrans.cn/67/6656/665504/665504_40.png
页: 1 2 3 [4]
查看完整版本: Titlebook: New Mining Tools and Methods for Roadheader Mining Heads; Krzysztof Kotwica Book 2022 The Editor(s) (if applicable) and The Author(s), und