1·The problems of beach dynamical physiognomy are usually related with beach inning, aquiculture, jetty construction, and sea - route dredging and so on.
滩涂围垦、水产养殖、防波堤建设和航道疏浚等往往涉及潮滩冲淤变化的研究。
2·The utility model relates to improvement for a gas water mixer, which is used in the field of aquiculture, water purification, food processing, chemical industry, etc.
本实用新型涉及一种气水混合器的改进，广泛应用于水产养殖、水净化、食品加工以及化工等领域。