... 总地层体积系数：total formation volume factor 总的钻井速度：overall drilling speed 总的：gross,main ...
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But too slow travel speed is directly related to slow drilling displacement and slow evacuation from the explosion site after drilling, which will influence the overall project's schedule.
行走速度太慢，钻孔移位慢，钻孔后撤离爆破现场的动作也慢，影响整个工程的进度。
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