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Titlebook: Heavy Metals: A Problem Solved?; Methods and Models t Jeroen C. J. M. Bergh,Mathijs N. Bouman,Ester Voet Book 2000 Springer Science+Busines

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41#
發(fā)表于 2025-3-28 18:00:17 | 只看該作者
42#
發(fā)表于 2025-3-28 19:33:01 | 只看該作者
ose who reached the upper levels of Navy command, I did not fit it. I was not prominent in my warfighting community; I was a diesel submariner in a nuclear community. Although I still wore my dolphins, I had had nothing to do with the submarine force since my days with Division 31, 16 years earlier.
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發(fā)表于 2025-3-29 00:36:39 | 只看該作者
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發(fā)表于 2025-3-29 06:08:12 | 只看該作者
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發(fā)表于 2025-3-29 07:19:18 | 只看該作者
General Introductionssing materials and energy. On the one hand, there are the problems related to resource depletion. These were first signalled several decades ago (Club of Rome, 1972) and have since lost some of their urgency: geological stocks are not as scarce as first believed and substitution of one stock by ano
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發(fā)表于 2025-3-29 14:59:15 | 只看該作者
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發(fā)表于 2025-3-29 17:35:36 | 只看該作者
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發(fā)表于 2025-3-29 20:01:51 | 只看該作者
FLUX, a tool for substance flow analysisy and of associated patterns of environmental pollution. This type of analysis is known as substance flow analysis (SFA) and as materials flow analysis (MFA) (see e.g. Vellinga et al., 1998; Schmidt and Schorb, 1995). SFA may be compared with economic analysis (e.g. input-output modelling) that is b
49#
發(fā)表于 2025-3-29 23:56:37 | 只看該作者
Economic analysis of Material-Product Chainsnomic and behavioural mechanisms underlying physical processes and material flows in the economy. In policy design, physical and technological possibilities need to be combined with economic aspects and behaviour. Traditionally, environmental economics has mainly focused on a partial analysis of env
50#
發(fā)表于 2025-3-30 05:48:53 | 只看該作者
Heavy-metal balances of agricultural soilshows that soil is also a finite resource that needs sustainable management. Heavy-metal inputs to agricultural soils need not always be as small as possible since some metals are indispensable for life. According to Alloway (1990), there are three criteria for determining whether or not an element i
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