Macroscopic qualitative study and microscopic test technique were combined to examine the effect of the fly ash activator on the early hydrating of cement paste with high volumes of fly ash.

本文采用宏观定性研究和微观测试技术相结合的方法，考察了活性激发剂对高掺量粉煤灰水泥浆体早期水化进程的影响。

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The macroscopic damage image of reinforced concrete slabs under impact effect are obtained through model test, and the residual velocity of the projectile are gained from the tests.

通过弹丸撞击有限厚度钢筋混凝土靶板的模型试验，获得了有关靶板冲击破坏的宏观图象及弹丸贯穿靶板后的残余速度。

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The failure reason of the aluminum alloy tube was investigated by macroscopic and microcosmic appearance observement, quality of material test, the stress analysis.

对失效铝合金管进行了宏观形貌观察、材质检验、 断口微观形貌观察及应力分析。

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