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古代的E61蒸汽阀与现代蒸汽阀相同吗?
答案很简单, 原来的阀门是后续的 当你向内转动时 阀门会推出一个垫口 蒸汽可以出去,再次关闭,没有蒸汽可以出去. 以现代的E61阀为例,垫口持器后方是带有弹簧的小不锈钢球.
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