用电子显微镜检验了混凝土承受不同冻融循环后的微观结构。
The microstructure of concrete after different freezing and thawing cycles were inspected using electron microscope.
它看起来像反光镜是无法确定原来的循环结构。
It looks like Reflector is unable to determine the original loop structure.
它看起来像反光镜是无法确定原来的循环结构。
It looks like Reflector is unable to determine the original loop structure.
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