水的排放·····················································································39第八章技术经济分析·············································································408.1建厂成本························································································408.2成本计算························································································408.3前景分析························································································41湖南科技大学潇湘学院本科生毕业设计(论文)-iii-第九章结论······················································································42参考文献·································································································43致谢········································································································44