In order to master the ballpoint pen Biro came up with a new design that would pull the ink onto the ball, without gravity or moving parts, producing a consistent and smooth line on the page.
为了掌握圆珠笔的使用方法,比罗设计了一种新的笔头,这种笔头,可以在没有重力或移动部件的情况下将墨水吸附在笔球上,从而在纸上形成一致而流畅的线条。