组件限定基本上平坦的支承平面并具有间隔开的锚定点，锚定点被定位成能够确保固定组件通过固定装置固定到股骨。

The assembly defines a substantially flat support plane and has spaced apart anchor points positioned so as to enable secure fixing of the fixture to a femur by fixing devices.

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在计算机绘图技术中，通过在平面上移动进行操作的一种手握的画面定位装置。

In computer graphics, a hand-held locator operated by moving it on a flat surface.

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实验结果表明，基于激光莫尔信号的精密定位装置可获得亚微米级的平面定位精度。

The experimental results show that submicron level plane positioning accuracy can be achieved by the precision positioning device based on laser Moire signal.

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