Through via technology should satisfy control requirement of outline, including tilt, shape, roughness, over-cut, and so on. The reliability, usability and duplication should be satisfied.
通孔技术需要能满足对轮廓形状的控制(包括控制倾斜度、形状、粗糙度、过刻蚀等)，同时又要求工艺能具有可靠性、实用性和重复性，最后，成本也要能被合理控制。
The machining accuracy of WEDM means mainly the dimensional accuracy, accuracy of form, accuracy of position, and the surface roughness of cut surfaces.
电火花线切割加工精度，主要指尺寸精度、形状精度、位置精度以及加工表面粗糙度。
The surface roughness in the wire cut of electric discharge machine work is one of the important parameters to measure the work performance.
电火花线切割加工的表面粗糙度是衡量加工质量的重要指标之一。
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