wheel mounting的用法和樣例：
例句
- A device consisting of a spinning mass, typically a disk or wheel, mounted on a base so that its axis can turn freely in one or more directions and thereby maintain its orientation regardless of any movement of the base.
陀螺儀一個旋轉物體，通常是圓盤或輪子安裝在一個底基上，它的軸可以自由地朝一個或多個方向旋轉，使所指方向不隨底基的運動而改變
