The exhaust passage exhausts the air of the cooling chamber at the upper reach along the moving direction (X) of the guiding passage.

排气通道在导入通道的沿搬运方向（X）的上游侧，排出冷却室内的 空气。

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Following the gradual enlargement of steam generation pressure, the flow velocity of exhausting steam is accelerated; then, the valve core is pushed upwards to block an air exhaust passage.

随着产生蒸汽的压力逐渐增大，排出蒸汽的流速加快，将阀芯上推堵住排气通道。

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Ventilation cabinet includes exhaust air tunnel, supply air tunnel, transport tunnel, pedestrian tunnel, equipment cavern, cross-passage etc.

通风机房洞室群一般包括：排风通道、送风通道、运输通道、人行通道、设备房、联络送风道、联络排风道等。

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