短語詞組短語side pit type furnace 側(cè)井爐oil pit type furnace 多罐井式爐pit carburizing furnace 井式滲碳爐pit type furnace 井式爐;坑式電爐cylindrical pit electric furnace 圓坑式電爐pit heating furnace 坑爐;均熱爐Pit tempering furnace 馬來西亞外商採購廻火爐roller -hearth pit soaking furnace 輥底式均熱爐natural draft pit furnace 自然通風(fēng)地坑爐 返回 pit furnace