Experimental results show that the thrust of such a drill is decreased by about 40% as compared with that of a standard drill and the torque by about 20%.

实验表明，这种麻花钻的轴向力较普通麻花钻降低40%左右，扭矩降低20%左右，是一种切削力小、能耗低的麻花钻。

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Experimental results show that the thrust of such a drill is decreased by about 40% as compared with that of a standard drill and the torque by about 20%.

实验表明，这种麻花钻的轴向力较普通麻花钻降低40%左右，扭矩降低20%左右，是一种切削力小、能耗低的麻花钻。

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