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
流逆转在跨越临界点时
有突跳特征，巷道
持较高数值时仍有随时逆转的可
。
The results obtained show that airflow reversal of declensional ventilation is catastrophic and the reversal may occur even in higher quantity of ventilation airflow.
下行流逆转在跨越临界点时有突跳特征，巷道持较高数值时仍有随时逆转的可。
明：以上例句、词
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