The results obtained show that airflow reversal of declensional ventilation is catastrophic and the reversal may occur even in higher quantity of ventilation airflow.
下行风流逆转在跨越临界点时
有突跳特征，巷道风量
高数值时仍有随时逆转
性。
;变格The results obtained show that airflow reversal of declensional ventilation is catastrophic and the reversal may occur even in higher quantity of ventilation airflow.
下行风流逆转在跨越临界点时有突跳特征，巷道风量高数值时仍有随时逆转性。
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