求翻译：铁铜合金的铸态组织，随着碳含量的增加呈现出铜组织中最明显的变化是铜的分布由网状逐渐变为断网状，甚至呈岛状分布的变化是什么意思？

Cast microstructure of iron and copper alloy, showing the most obvious change in the copper organization with the increase of carbon content is the distribution of the copper mesh gradually into the broken mesh, even island shape distribution changes

The cast iron copper alloy, with State organizations increase the carbon content of the copper in the organization is the most obvious change is the distribution of copper mesh has gradually turned into the mesh, or even an island-like changes in the distribution

The hard copper alloy cast condition organization, presents in the copper organization along with the carbon content increase the most obvious change is the copper distribution becomes gradually by the lattice breaks the lattice, even assumes the island shape distribution the change

Cast structure of Fe-CU alloy, as the carbon content increases, showing copper copper is the most obvious change in the Organization's distribution network gradually broken mesh, even with island distribution

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