基本解释[地球科学]淡水河口湾英汉例句双语例句So it is very important to study on the mixing of salt-fresh water and saltwater intrusion in Changjiang Estuary.因此研究长江口盐淡水混合、盐水入侵情况有着及其重要的理论意义和实用价值。fresh-water estuary更多例句专业释义地球科学淡水河口湾