自然循环锅炉中,汽水主要靠水和蒸汽的密度差产生的压头而循环流动
参考答案:对
液压剪切钳剪切作双轮异向切割锯破拆作业,能快速切割硬度较高的金属薄片等。
下面的程序代码实现将一个一维数组中元素向右循环移动,移位次数由文本框Text输入。例如数组各元素的值依次为0,1,2,3,4,5,6,7,8,9,10;移动三次后,各元素的值依次为8,9,10,0,1,2,3,4,5,6,7。 Private Sub Moveright(x()As Integer) Dim i As Integer Dim j As Integer Dim k As Integer i=UBound(x) j=x(i) For k=i To (6) Step-1 (7) Next k x(LBound(x))=j End Sub Private Sub Command1_Click() Dim a(10)As Integer Dim i As Integer Dim j As Integer Dim k As Integer For i=0 To 10 a(i)=i Next i j=Val(Text1.Text) k=0 Do k=k+1 Call MoveRight(a) Loop Until k=j For i=0 To 10 Print a(i); Next i End Sub