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Derail Valley
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Blower & Damper/4/zh-hant
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From Derail Valley
「送風器」通常通常透過一個閥門進行操作。打開時,將釋放少量
鍋爐
中的蒸汽噴出煙囪,以此同樣在火箱內產生負壓,吸入新鮮空氣。以此方法導入的氣流遠遠比不上加速時的量,因此在蒸汽機車靜止時才最有
效率
。