bar coupling meaning in English

杆形联接器

After discussions within the committee and with the campus planning and building committee , the committee acquired a second opinion from a geotechnical expert who redesigned the stabilization method by reducing rock dowel to over 300 bars coupled with localized trimming and buttresses , before the hammer was dropped
校园岩土事务委员会与校园计划及建设委员会商议后，寻求另一名专家的意见。新方法是局部切削斜坡和加设支墩，可将传力杆减至三百馀条* 。