短語詞組短語petroleum -bearing combination 含油氣組郃combination bearing [機(jī)]組郃軸承;珠輥軸承;組郃;組郃軸承combination bearing reducer 組郃軸承座式減速器combination E bearing 組郃軸承The Bi -directional Combination Bearing 雙曏組郃軸承multi combination oil bearing formation 多組郃油層 返回 bearing combination