Using the device , we tested two groups of samples that included the steel of 40cr and the steel of 65mn , got a single - valued relationship between displayed value on the device and tempering hardness 對以40cr和65mn為代表的回火件進行了硬度測試,得到了其回火硬度與數顯值之間良好的單值對應關系。
Experimental result shows that the non - uniform flux of open channel is single - valued corresponding to the opening angle of the plate and water depth in front of the plate , and satisfies the dualistic function 通過試驗可知:細長板開啟角度、明渠非均勻流流量與板前水深三者單值對應,并滿足二元函數的變化關系。