同根派生 fire clay相关词英汉例句His aim was to improve the efficiency of the open fire by the use of lumps of fireclay and by a canopy, both designed to increase the amount of radiant heat.他通过炉盖和火泥块的使用来起到改善敞开的炉子的效率的目的，这两项设计提高了热辐射量。fire clay更多例句