situational investigation

• 环境调查

situational investigation的用法和样例：

例句

1. Methods of environmental investigation were adopted to study the contents of heavy metals in the soil at the tumorous stem mustard cultivation base in Nantuo, Fuling.
   采用环境调查的方法研究了涪陵南沱镇茎瘤芥种植基地土壤重金属含量。