The average ratios of DOC/POC vary 4.4 from 5.5 in wet and dry seasons, which are between ocean (about 10) and rivers (about 1.5).是什么意思_The average ratios of DOC/POC vary 4.4 from 5.5 in wet and dry seasons, which are between ocean (about 10) and rivers (about 1.5).在线翻译_英语_读音_用法_例句