机会
发表于 2025-3-21 18:50:51
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易于出错
发表于 2025-3-21 23:05:01
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jealousy
发表于 2025-3-22 02:24:45
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有罪
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有害处
发表于 2025-3-22 10:36:51
Size Enlargement by Agglomeration,changes of state of particulate matter which in most cases is solid but can also be liquid (droplets) and, in a few special cases, gaseous (microencapsulated). The unit operations of mechanical process technology can be differentiated by the processes of separation and combination with and without c
使服水土
发表于 2025-3-22 13:50:44
Fluidization Phenomena and Fluidized Bed Technology,tream of process gas. At the lower end of the velocity range, the amount of lifting is slight, the bed behaving like a boiling liquid (hence the term .). At the other extreme, the particles are fully suspended in the gas stream and are carried along with it; the terms ., and . contact have all been
Chivalrous
发表于 2025-3-22 17:34:28
Spouting of Particulate Solids,ion. Although the areas of application of spouted beds overlap with those of fluidized beds, the flow mechanisms in the two cases are very different. Agitation of particles in a spouted bed is caused by a steady axial jet and is regular and cyclic, as distinct from the more random and complex partic
FLING
发表于 2025-3-23 00:01:38
Mixing of Powders,e. In fact the term good is meaningless in the context of individual powder technology and one should use the term satisfactory, with the exact meaning of this term being interpreted within the context of the industrial process. Most mixers are designed to achieve a random mixture of the ingredients
疲惫的老马
发表于 2025-3-23 03:33:28
Size Reduction of Solids Crushing and Grinding Equipment,s of powder technology. It is estimated that mechanical size reduction of rocks, ores, coals, cement, plastics, grains, etc. involves at least a billion tons of material per year in the United States alone. The operation ranges in scale, for a single device, from a few kilograms per hour for special
剧毒
发表于 2025-3-23 08:34:16
Sedimentation,ter, thickening of milled gold ore pulps, flotation of suspended sewage solids, and countercurrent washing of soluble metal from acid-leached suspensions. These operations typically are performed in relatively large single-compartment tanks such as shown in Figures 13.1, 13.2, and 13.3.The discussio