Since the basic shape of the board and the distribution of holes and grooves are different, the formats of location dimensions for dimensioning center-to-centerspacing are also different.
形状和孔、槽的分布形式不同，其中心距定位尺寸的标注形式也不一样。
2
Wire spacing - Specify square, rectangular or specialty configuration with wire spacingcenter-to-center, clear opening or mesh count.