Conventional and freeze-thawed concrete specimens were detected by a universal test machine. The relationship between supersonic velocity and loading was obtained.
采用常规混凝土和冻融混凝土为试件，在材料万能试验机上进行了破坏实验，得到了不同荷载作用下超声波的波速。
There are sound physical and chemical inspection equipment, optical microscope, universal test machine, desktop sclerometer.
还有完善的理化检验设备，金相显微镜、万能性试验机、台式硬度计。
There are sound physical and chemical inspection equipment, optical microscope, universal test machine, desktop sclerometer.
还有完善的理化检验设备，金相显微镜、万能性试验机、台式硬度计。
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