sludges的知识精选

“sludges”可以造什么句,sludges造句
Thesewagesludgescanbeusedasamendmentsoncropland.Phosphorusfractionationisimportanttooinunderstandingthebiologicalphosphorusremovalprocessandpossibilitiestorecoverphosphorusfromsludges.Theresultsshowth...
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