spot edge的用法和样例：
例句
- Especially in the edge extraction, the speckle noise makes none of the conventional extraction algorithms get good result.
特别是对于边缘提取，斑点噪声使得传统的提取算法几乎都无法取得理想的效果。 - Low pressure will cause missing and rough edge, and high pressure or soft squeegee will cause speckle print even damage the squeegee or stencil.
刮板压力低造成遗漏和粗糙的边缘，而刮板压力高或很软的刮板将引起斑点状的印刷，甚至可能损坏刮板和模板或丝网。
