spot size

• 黑子大小,光点直径

spot size的用法和样例：

例句

1. As component size gets smaller, the target adhesive dot diameter required to bond a component without contaminating solder pads also is reduced.
   随着元件尺寸的不断减小，为了保证不对焊盘造成污染，黏着元件所需的胶点直径也必须随之变小。