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。
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.
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