refractory gun喷浆枪refractoryadj.不听话的；执拗的；难治疗的；免疫的；耐火的n.倔强的人；耐火材料refractory repairing mass耐火补炉料refractory metal silicide难熔金属硅化物refractory fireclay block粘土耐火砖refractory cerebral palsy重症脑性瘫痪refractory alumina cement耐火高铝水泥refractory furnace lining[机] 耐火炉衬refractory metal contacts难熔金属电接触器材Refractory zinc oxide ore难选氧化锌矿refractory patch material补炉材料refractory lining mixture耐火搪衬料