Best layout and performance are achieved with at least a 4-layer multilayer board, where there is a ground plane layer, a power supply layer, and two signal layers.
电路板至少需要4层才能实现最佳布局和性能：一个接地层、一个电源层和两个信号层。
I also placed a base layer of wild grass to help define the ground plane.
我还新建了一个野草的图层来帮助地面部分的表达。
The planted layers within a landscape include the tree (canopy) and understory layers as well as the ground plane, the most important layer.
在景观的种植层包括树（树冠）和林下层以及地平面上，最重要的一层。
The planted layers within a landscape include the tree (canopy) and understory layers as well as the ground plane, the most important layer.
在景观的种植层包括树（树冠）和林下层以及地平面上，最重要的一层。
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