短語(yǔ)詞組短語(yǔ)ball float collar 球形浮箍ball collar thrust bearing 滾珠環(huán)止推軸承;[機(jī)]滾珠環(huán)推力軸承;環(huán)形球推力軸承;滾珠環(huán)止推ball collar tbearing 油膜軸承concentrated ball collar 密珠套ball collar thblight bearing 滾珠環(huán)止推軸承 返回 ball collar