短語詞組短語valve -bearing vein segment 帶瓣靜脈段Lower guide bearing segment 下導(dǎo)瓦thrust bearing segment 止推軸承墊片;推力軸承;扇形塊Upper guide bearing segment 上導(dǎo)瓦Bearing segment burning 軸承燒瓦segment bearing 多片瓦軸承segment guide bearing 分塊瓦導(dǎo)軸承 返回 bearing segment