短語詞組短語bearing bush bush 軸瓦bearing supporting bush 軸承支撐襯套bearing g bush 軸瓦;軸承瓦ball -bearing guide bush 滾珠導套oval bearing bush 橢圓形軸襯solid bearing bush 單層軸套bearing bush material 軸瓦材料bearing bush detail 軸承襯墊bearing bush casting process 軸瓦澆注工藝 返回 bearing bush