他介绍一张黑色纸和一个打洞器。
收票员用打洞器检查车票。
印和醒目的打洞器是碳工具需要的钢高度的其他例子穿着抵抗。
Coining and striking punches are other examples of carbon tool steels that require high wear resistance.
星形的小型打洞器在全国也遭受相同的命运，碎成几块无法使用——无奈，选举工作人员只能用剪刀来代替。
So too did the little star-shaped hole punches break and fall apart across the country-forcing election workers to turn to scissors instead.
试着在潮湿的地方打洞，以提高集水器的效率。
Try to make the hole in a damp area to increase the water catcher's productivity.
本程序为UDP打洞原理的测试程序。为了简单起见，该程序服务器就接收两个客户端的连接，使两客户端建立UDP通道。
For simplicity, the program server to the client receives the connection of two, so that the two clients to establish UDP channel.
本程序为UDP打洞原理的测试程序。为了简单起见，该程序服务器就接收两个客户端的连接，使两客户端建立UDP通道。
For simplicity, the program server to the client receives the connection of two, so that the two clients to establish UDP channel.
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