为了减少机床零部件的热变形,在零部件设计上应注意()。
A.加大截面积
B.减小长径比
C.采用开式结构
D.采用热对称结构
参考答案:D
—Did you have a good time at the party?
—_______ We all enjoyed it so much that it lasted until midnight.
A.Terrible!
B.Goodness!
C.Absolutely!
D.Boring!
机房净面积符合设计要求,室内净高度()米。