1U=4.445*1=4.445厘米
2U=4.445*2=8.89厘米
3U=4.445*3=13.335厘米
4U=4.445*4=17.78厘米
5U=4.445*5=22.225厘米
6U=4.445*6=26.67厘米
8U=4.445*8=35.56厘米
12U=4.445*12=53.34厘米
16U=4.445*16=71.12厘米
20U=4.445*20=88.9厘米
24U=4.445*24=106.68厘米
28U=4.445*28=124.46厘米
32U=4.445*32=142.24厘米
36U=4.445*36=160.02厘米
40U=4.445*40=177.8厘米2100433B