短语词组短語ringlike packing 環狀填料ringlike beam 環梁ringlike electrode 環狀電極ringlike equipment 環形設備ringlike structure 環狀結搆ringlike pipenet 壞狀琯網ringlike type 環式Ringlike Memory 環形內存ringlike deephole drilling machine 環形深孔鑽機 返回 ringlike