They are composed of four different materials, which must be uniformly deposited on a backing material, or substrate.
它们由四种不同元素组成。四元素沉积在一基质元素中。
PV cladding materials can now be obtained in different patterns and colours, depending upon the nature of the cells and the backing material to which they are applied.
PV覆盖材料现在在样式和颜色上都有不同选择，这取决于其采用的电池特性和背基材料。
PV cladding materials can now be obtained in different patterns and colours, depending upon the nature of the cells and the backing material to which they are applied.
PV覆盖材料现在在样式和颜色上都有不同选择，这取决于其采用的电池特性和背基材料。
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