短語詞組短語vertical water tube boiler 立式水管鍋爐vertical return tube boiler 立式回焰鍋爐vertical phasing tube 垂直定相管Vertical -Tube Rtor 垂直式轉(zhuǎn)子vertical upward tube 垂直上升管vertical riser tube 垂直上升管vertical fire tube 立式火管vertical helix tube 豎直螺旋槽管vertical cross tube boiler 立式橫管鍋爐 返回 vertical tube