连续自然日
consecutive or running day
山东省水利勘测设计院；日照水库管理局
Shandong Survey and Design Institute of Water Conservancy
半自然水域
Semi-nature aqueous reserve
黑龙江凉水自然保护区
Liangshui Nature Reserve in Heilongjiang
凉水自然保护区
liangshui nature reserve
Liangshui national nature reserve
Liangshui natural preserve