试件尺寸越大，岩石动态强度对应变率依赖的灵敏性越显著，所测得的岩石动态强度离散性越小；
The bigger the specimen size is, the more notable the sensitivity of rock dynamic strength dependence to strain rate is, and the smaller discreteness of the obtained rock dynamic strength is.
给出了灰砂岩、石灰岩两种岩石动态的破裂强度与应力应变关系。
The dynamic strength and dynamic stress-strain curves for sandstone and limestone are given.
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