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我队在矿区普查找矿中,采用SC56绳索取心钻具钻进。近两年共施工了10个涌水孔,总进尺4444．33米,平均孔深444．43米。绳索取心在涌水地层中钻
My team census in the mining prospecting, drilling with SC56 rope coring tools. In the past two years, a total of 10 gushing wells were constructed, with a total footage of 4444.33 meters and an average hole depth of 444.43 meters. Cord coring drilling in the gushing water