基本解釋[能源科學(xué)技術(shù)]群鉆詞組短語短語Chinese Multi -Facet Drill 群鉆multi-facet drill更多詞組專業(yè)釋義能源科學(xué)技術(shù)群鉆The new type Chinese multi-facet drill(CMFD) developed from the common twist drill by rationally regrinding in order to solve problems existing with the twist drill has an excellent performance when cutting.群鉆是針對(duì)普通麻花鉆所存在的問題,進(jìn)行合理修磨而創(chuàng)制的新鉆型,其切削性能非常優(yōu)異。