Above each machinist's workstation, there was a wooden cube with a different colour painted on each face.
在每个机械师的工作站上方，都有一个木制的立方体，每个面都涂着不同的颜色。
This way, I implicitly defined the outside of the cube as the front face and the inside as the back face.
通过这样的方式，也就隐式地将立方体的外部定义为正面，而将内部作为背面。
For example instead of setting them once for a cube, you may need to set the capabilities six times, once for each face.
例如，代之以对立方体只做一次设置，你可能实际需要设置六次，每个面一次。
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