绳: rope; cord; string式: type; style顿钻: percussion drilling; America ...游: swim梁: beam前臂: forearm; cubitus; antebrachi ...的: 4次方是 The fourth power of 2 i ...保险: insure; guarantee; insurance立柱: stud; upright column; uprigh ...无游梁绳式顿钻: churn drilling无游梁绳式顿钻钻机: churn-type percussion drill绳式顿钻: american system of drilling绳式顿钻钻机: churn drill绳式顿钻钻井: cable tool drilling绳式顿钻钻具: cable tool绳式顿钻井系统: cable system美国钻井方式;绳式顿钻: american system of drilling绳式顿钻捞砂轮刹车: back brake杆式顿钻: rod tool drilling下方的: downward; inferior; nether写在下方的: subscript右下方的: bottom-right在下方的: subjacent左下方的: bottom left前臂下端闭合性骨折: closed fracture of lower end of forearm