通过对现场测试结果的分析，找出了主井风流反向的原因，并采取相应的技术措施，使主井恢复正常的进风状态。

According to the analysis of field test results, the reasons of opposite direction airflow are found, and it is returned to normal airflow through taking appropriate measures.

youdao

通过对现场测试结果的分析，找出了主井风流反向的原因，并采取相应的技术措施，使主井恢复正常的进风状态。

According to the analysis of field test results, the reasons of opposite direction airflow are found, and it is returned to normal airflow through taking appropriate measures.

youdao