field method

• 区域法,现场调查,野外方法,实地调查法

field method的用法和样例：

例句

1. The field investigation found a history of exposure to sick poultry around her house.
   现场调查发现有与其住宅周围的病禽接触史。
2. Field investigations have not found any indications of respiratory illness in close contacts of the young man.
   现场调查未发现任何迹象表明在该年轻男子的密切接触者中出现呼吸道疾病。