... well-spent 充分利用了的... spent residue 废物 spent electrolyte 废电解液 ...
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spent FCC catalyst residue 废
The feasibility of spent soda residue treatment technology and its impact on the environment and economy are introduced.
阐述了炼油厂废碱渣处理技术的可行性与实施后对环境、经济造成的影响。
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