标准截槽深度从24至72英寸标准的。
根据煤的崩落性质,研究了截槽形状与煤的块度、截煤阻力及截齿的切削效率等关系。
According to coal breakout feature, the author has studied the relationship between cutting groove shape and the lump of coal and cutting resistance as well as cutting efficiency.
横向截形是麻花钻螺旋面容屑槽的一个特征参数。
Drill cross section profile (DCSP) is a characteristic parameter of drill helix flute form.
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