滚轮按钮 Scroll wheel
（重定向自Scrollwheel）
5930.JPG)
滚轮按钮、拨轮，通常指电脑鼠标表面的塑胶或橡胶转轮，它位于鼠标的左键与右键之间。
鼠标滚轮是由昆盈企业于1995年发明。
Scrollwheel
中文百科
英语百科
Scroll wheel 滚轮按钮
（重定向自Scrollwheel）
A scroll wheel (or mouse wheel) is a hard plastic or rubbery disc (the "wheel") on a computer mouse that is perpendicular to the mouse surface. It is normally located between the left and right mouse buttons.