严格控制环境 meaning in English

strictly controlled environment

However , one of the most serious impediments to wider use and improve precision of psi is its sensitivity to external vibration with the consequence that psi has rarely been used in a manufacturing in - situ and some special situations , such as that the optical path is very long or the detected unit is very large
通过严格控制环境条件(温度、气流、振动等) ，其理论光程差(位相)的最小分辨率可以达到nm的数量级。然而，由于干涉计量测试灵敏度高、精度高，对外界振动非常敏感，使它的应用范围受到限制。