随着施加在煤样上的载荷增加，钻孔冲击次数显著增多，冲击强度增大。

Along with the load increasing that ACTS on the coal sample, the burst frequency obviously rise and the burst intension also rise.

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测定了在不同纤维掺量下混凝土梁的初裂冲击次数、破坏冲击次数以及冲击能。

The initial-crack, fracture impact cycle number and impact energy of these concrete beams with different fiber dosages are also tested.

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应用动态球腔扩张理论，建立了冲击贯入方程、冲击次数表达式和贯入阻力与贯入深度的关系。

And then a theory on the penetrating depth, the number of impact and the relation between penetrating resistance and depth was obtained by means of dynamic spherical cavity expansion.

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