ORE
发表于 2025-3-28 17:43:52
Dominic Orchard,Alan Mycrofty the National Coal Board and the European Coal and Steel Community (Projects 7220 - ACj806 and 7220 - ACj814), into the behaviour of under ground openings in British coal mines. The original work has been expanded to include other relevant British and international data. How ever, it remains, del
使乳化
发表于 2025-3-28 21:55:22
Mischa Dieterle,Thomas Horstmeyer,Jost Berthold,Rita Loogeny the National Coal Board and the European Coal and Steel Community (Projects 7220 - ACj806 and 7220 - ACj814), into the behaviour of under ground openings in British coal mines. The original work has been expanded to include other relevant British and international data. How ever, it remains, del
1分开
发表于 2025-3-29 00:40:41
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沙发
发表于 2025-3-29 04:36:41
Neil Sculthorpe,Andrew Farmer,Andy Gillhe surface, is one which has exceptional appeal to the public. For this reason alone, a careful analysis of the possibilities is desirable, regularly renewed in the light of developing technology and changing energy economics. Such analysis, however, requires increasingly elaborate experimental and
搬运工
发表于 2025-3-29 11:07:35
José Pedro Magalhães this book. However, some slight familiarity with the general principles of getting coal is a desirable adjunct to a consideration of coal utilisation. It is obvious that the quality of the coal, and therefore its suitability for various uses, can be directly affected by the mining techniques employ
vocation
发表于 2025-3-29 13:29:17
Matthew Fluethey bear a substantial responsibility for the way the policy of the National Coal Board in this field has developed since 1966 and, more directly, for the programme of work at the Coal Research Establishment, Stoke Orchard, near Cheltenham. After a period of relative neglect, R&D on Coal Utilisation
碎石
发表于 2025-3-29 18:58:26
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恩惠
发表于 2025-3-29 20:02:53
Paul van der Walt,Wouter Swierstrad, as well as time, at multiple scales. Such detailed information needs the use of sophisticated measuring techniques with capability to provide the required information over the entire flow field, as well as time, at multiple scales. Aside from the mean velocities and volume fractions, information
Hay-Fever
发表于 2025-3-30 03:15:33
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gastritis
发表于 2025-3-30 05:25:43
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