青海原地区人群硒水平分布状况调查的英文

study on selenium level ditribution of people settled in qinghai plateau regions

• 青海:    Qinghai
• 区:    H region; H
• 人群:    crowd; throng; mul ...
• 硒:    selenium
• 水平分布:    horizontal distrib ...
• 状况:    condition; state; ...
• 调查:    investigate; exami ...