单词	单弧炉
释义	单弧炉single arc furnace
随便看	central forces central forest office central formosan bay-bellied squirrel central fossa central fovea central foveola central frame central frequency central fringe central fulcrum central fuselage central gallows for antenna central gallows for counterpoise central ganglion central gear central goby central government central government inspection central granite central granule central greece central hearing loss central heating central heating and air-conditioning central heating system