“打孔”造句

打孔的地方表示正确答案.
The places where the holes are punched out mark the right answers.

(列车)乘务员用剪票夹在我们的车票上打孔(验票).
The train conductor punched our tickets.

如果汇水面积大于天沟排水能力, 可以在天沟底部打孔.
For catchment areas greater than gutter capacity, slotted holes can be installed.

• #打孔