／妹＼
2020-06-03T11:24:57+00:00
图中有个2B3什么意思
[img]https://img.nga.178.com/attachments/mon_202006/12/-7Q5-i6qnK2nT1kShs-12z.jpg.medium.jpg[/img]
翻到94页只有一个B3，没有2B3
[img]https://img.nga.178.com/attachments/mon_202006/12/-7Q5-4mryZfT1kShs-12z.jpg.medium.jpg[/img]
问一下2B3到底什么意思
[img]https://img.nga.178.com/attachments/mon_202006/12/-7Q5-i6qnK2nT1kShs-12z.jpg.medium.jpg[/img]
翻到94页只有一个B3，没有2B3
[img]https://img.nga.178.com/attachments/mon_202006/12/-7Q5-4mryZfT1kShs-12z.jpg.medium.jpg[/img]
问一下2B3到底什么意思