不同加载时间下的静态加载试件强度下降的差异无统计学意义，同时不伴随内锥状裂纹的产生。
No significant difference in the strength degradation among all static loading specimens and no inner cone cracks occurred in static loading specimens.
不同加载时间下的静态加载试件强度下降的差异无统计学意义，同时不伴随内锥状裂纹的产生。
No significant difference in the strength degradation among all static loading specimens and no inner cone cracks occurred in static loading specimens.
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