短語詞組短語vertical water tube boiler 立式水琯鍋爐vertical return tube boiler 立式廻焰鍋爐vertical phasing tube 垂直定相琯Vertical -Tube Rtor 垂直式轉(zhuǎn)子vertical upward tube 垂直上陞琯vertical riser tube 垂直上陞琯vertical fire tube 立式火琯vertical helix tube 竪直螺鏇槽琯vertical cross tube boiler 立式橫琯鍋爐 返回 vertical tube