A-A+
画局部视图时 下列描述正确的是哪个？ Which description of the following is correct when drawing partial views？
问题详情
画局部视图时，下列描述正确的是哪个？ Which description of the following is correct when drawing partial views？
A．不需要标注 It does not need to mark.
B．必须要标注 It must be marked
C．可省略字母标注It can be marked by omitting letters
D．可省略标注The marks can be omitted
参考答案
局部视图用来表达物体的局部，轮廓线用波浪线表示，波浪线不可省略。