常見例句雙語例句Low sprang force, May avoid the milling cutter the drill bit break.彈簧力較小,可避免小銑刀或鉆頭斷裂。www.jdol.com.cnLow sprang force, May avoid the milling cutter or the drill bit break.彈簧力較小,可避免小銑刀或鉆頭斷裂。SEC/ECP cutter to promote longer bit life for the full spectrum of formations.ECP布齒提高在含硬夾層的軟地質(zhì)層中使用壽命。cdfykj.w281.bizcn.com 返回 cutter bit