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侧面左右 发表于 2025-3-21 23:40:51

Book 1969g systems of working, this technical knowledge should embrace the exploitation of many different types of deposits. There is, at present, a great dearth throughout the world of such qualified executives as is apparent from advertisements of vacancies in the technical press. It would appear that thes

Affectation 发表于 2025-3-22 02:53:59

y differing systems of working, this technical knowledge should embrace the exploitation of many different types of deposits. There is, at present, a great dearth throughout the world of such qualified executives as is apparent from advertisements of vacancies in the technical press. It would appear that thes978-94-011-7613-2978-94-011-7611-8

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爆炸 发表于 2025-3-22 09:25:50

John Sinclair M.Eng., Ph.D., C.Eng., M.I.Min.E., Barrister-at-Lawen, oder sind die Trägerdichten im Gasraum sehr hoch (dichte Plasmen), so kommen als Verlustprozesse die Umkehrprozesse der Ionisierungsprozesse ins Spiel. Wir wollen diese Prozesse als VotumenhekombLnat.on oder allgemein als Rekombination bezeichnen. Wir verstehen also unter Rekombination alle Stoß

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他去就结束 发表于 2025-3-22 23:11:03

John Sinclair M.Eng., Ph.D., C.Eng., M.I.Min.E., Barrister-at-Law

MAZE 发表于 2025-3-23 02:54:47

John Sinclair M.Eng., Ph.D., C.Eng., M.I.Min.E., Barrister-at-Law

抵制 发表于 2025-3-23 08:40:26

John Sinclair M.Eng., Ph.D., C.Eng., M.I.Min.E., Barrister-at-Law
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查看完整版本: Titlebook: Quarrying Opencast and Alluvial Mining; John Sinclair Book 1969 Elsevier Publishing Company Limited 1969 clays.coal.concrete.development.m