It is applicable for vacuum system to cut off or put through the airflow.
适用于真空系统中，用来切断或导通气流。
His advice includes keeping the airflow over your seat on the "low" position.
他的建议包括保持通过座位的气流在低位。
Actually, in the case of ventilation network disaster airflow always was unsteady flow.
实际上，在通风网络发生灾变的情况下经常会遇到非定常流动。
A device on the engine for blocking the normal airflow during thrust reverser operation.
发动机上的一个装置。在反推工作时用于阻挡正常的气流。
Airflow noise in duct should be controlled within the range of standard during duct design.
风道设计中要求风道的气流噪声必须控制在允许的范围内。
Airflow noise in duct should be controlled within the range of standard during duct design.
风道设计中要求风道的气流噪声必须控制在允许的范围内。
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