heat expansion trap 热膨胀式疏水阀

liquid expansion trap 液膨胀闸

liquid expansion steam trap 液体膨胀式蒸汽疏水阀 ; 液体收缩式蒸汽疏水阀 ; 液体膨胀式蒸汽

metal expansion steam trap 金属膨胀式蒸汽疏水阀 ; 金属膨胀式蒸汽

expansion steam trap 恒温式疏水器

expansion drain trap 膨胀排泄阱

bimetallic expansion steam trap 双金属膨胀式蒸汽疏水阀 ; 双金属膨胀式蒸汽

edgeworth expansion and boos-trap edgeworth展开和boostrap方法

liquid expansion steare trap 液体膨胀式蒸汽疏水阀