EVICT 发表于 2025-3-23 12:35:50

lten Barbaren« einer Kleinstadt erscheint als ein Überprüfen der »Hoffnung«, die sich an Ideologien des Mittelstandes hefteten, auf ihre materielle Substanz. Benjamin schätzte an den . von 1929 . die Überzeugung der Autorin, »daß man in der Provinz Erfahrungen macht, die es mit dem großen Leben der

enterprise 发表于 2025-3-23 15:58:40

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温和女孩 发表于 2025-3-23 19:27:41

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蛰伏 发表于 2025-3-23 23:00:37

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heterodox 发表于 2025-3-24 03:45:52

Industrial Waters,In Great Britain, town mains water will have been treated to render it largely clear and colourless, free from odour, and bacteriologically sterile. It is thus directly suitable for many industrial purposes such as cooling, and in cases where ion exchange treatment is used, town mains water can norm

Coeval 发表于 2025-3-24 07:50:51

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增减字母法 发表于 2025-3-24 11:35:45

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柏树 发表于 2025-3-24 15:05:43

Industrial Waters,In Great Britain, town mains water will have been treated to render it largely clear and colourless, free from odour, and bacteriologically sterile. It is thus directly suitable for many industrial purposes such as cooling, and in cases where ion exchange treatment is used, town mains water can norm

reaching 发表于 2025-3-24 19:18:56

Combination Processes,d in large scale operations, by grouping together larger numbers of units. The combinations normally used in practice are considered below in increasing order of complexity. The results are indicative of the trends given by the various processes, and are not intended to be absolute values for all ca

藐视 发表于 2025-3-25 02:32:40

The Ion Exchange Process, tends to be forgotten that the principle of the process itself is neither new, nor unduly complex. It has probably been used by every living chemist in the earliest stages of his studies. The experiment of detecting chloride in solution, by the addition of silver nitrate solution, typifies the comm
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查看完整版本: Titlebook: Water Purification by Ion Exchange; T. V. Arden Book 1968 Butterworth and Co. (Publishers) Ltd. 1968 base.chromatography.laboratory techni