基本解释[經濟學]石墨青銅軸承词组短语短語graphite e bronze bearing 石墨青銅軸承porous graphite -containing bronze bearing 多孔石墨青銅軸承Oily bronze graphite bearing 青銅石墨含油軸承bronze -graphite bearing 青銅石墨軸承graphite bronze bearing更多词组专业释义經濟學石墨青銅軸承