短語(yǔ)詞組短語(yǔ)walking -beam coil conveyer 步進(jìn)梁式運(yùn)輸機(jī)vertical walking -beam 豎游梁electric walking -beam furnace 步進(jìn)梁式電爐regenerative walking -beam furnace 蓄熱式步進(jìn)加熱爐 返回 walking beam