The influence extent and reason of suspended solid (SS) on polluted raw water bio pretreatment operation were studied in this article.
探讨了悬浮物对源水生物预处理装置运行的影响程度和影响机理 。
The Columbus-America Discovery Group, a salvage operation assembled to locate the wreck, found the SS Central America in September 1987, recovering vast quantities of gold worth.
美国哥伦比亚搜寻公司组织了一个打捞团队来寻找残骸地点，在1987年的9月找到了SS中美洲号，大量的金条和金币重现天日。
应用推荐