Based on the analysis about supersonictesting, the relation of supersonic wave-velocity with the quantity of steel fibre in concrete was found.
通过超声测试分析,得出了钢纤维混凝土超声波速与纤维掺入量的关系。
2
At present, supersonic method is the most effective in harmless testing methods on concrete quality.
目前,在诸多混凝土质量的无损检测方法中,应用最广泛、最有效的是超声法检测。
3
Instead of the sonic nozzle, low supersonic nozzles have been utilized to solve the choking problem in transonic wind tunnel testing of high angle-of-attack and high blockage.