例如，要电镀的注塑件在电镀时会经受酸溶液，必须采用很低的注塑速度制造以使表面方向性最小化。
For example, moldings that are to be electroplated, and will be subject to acid solutions during plating, must be made using very slow injection speeds to minimize surface orientation.
建立了方向图设计的数学模型，通过最小化代价函数来获得数值优化结果。
A mathematical model of designing a beam pattern is set up, and the method can get the optimized result by minimizing the cost function.
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