当扩展时，阻流门阻止风扇排气，迫使空气反向通过级联段。
When extended, the blocker doors block the fan exhaust, forcing air in the reverse direction through the cascade segments.
三峡船闸输水系统阀门设计拟采用双面板式反向弧形门。
The reversed tainter valve of double plate type will be used in the TGP's lock filling and emptying system.
三峡船闸输水系统阀门设计拟采用双面板式反向弧形门。
The reversed tainter valve of double plate type will be used in the TGP's lock filling and emptying system.
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