Acute toxic test of four heavy metal ions and their mixed solution on the brachionus urceus 4种重金属离子及其混合液对壶状臂尾轮虫的急性毒性试验
2.
The pot shaped peak is formed along the joints and fissures with the weathering and eroding of adamellite formed 2 . 4billion years ago 24亿年左右形成的古元古代二长花岗岩,沿节理裂隙风化剥蚀后形成的壶状山峰。