m Once blast hole depth 一次钻凿岩炮孔深度
The temperature gradient in blast hole was also measured and the temperature gradient was relative to the blast hole depth and its tem...
同时，还进行了炮孔孔内温度梯度的测量，它与炮孔深度及其温度有关。
The temperature gradient in blast hole was also measured and the temperature gradient was relative to the blast hole depth and its temperature.
同时，还进行了炮孔孔内温度梯度的测量，它与炮孔深度及其温度有关。
In addition, our experiments also indicate that the best depth of blast hole is close to shaft radius.
此外，试验还表明最佳的炮孔深度接近于井筒的半径。
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