微孔率是评价连接器镀金质量的重要参数之一。
Porosity is one of the important factors to evaluate the quality of gold plating on connectors.
镀金触点表面的微孔率是表征镀层质量的重要指标，它表明了镀层对基体防护作用的优劣程度。
Microporosity of the surface of Gold Plated Contacts which indicates the protection performance of plating layers to matrix is an important index for quality of plating surface features.
当存在铁时，本发明的合金还具有改性的共晶硅和改性的铁形态，从而导致低微孔率和高冲击性。
The alloys of the present invention also have a modified eutectic silicon and modified iron morphology, when iron is present, resulting in low microporosity and high impact properties.
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