为什么这个顶层有焊盘底层却没有了呢

<img src='https://www.jlc.com/portal/ueditor/themes/default/images/spacer.gif'/><img src='https://www.jlc.com/portal/ueditor/themes/default/images/spacer.gif'/><img src='/uploadfiles/image/20210721/1626874781820022222.png' title='1626874781820022222.png' alt='QQ图片20210721213916.png'/><img src='/uploadfiles/image/20210721/1626874788771033354.png' title='1626874788771033354.png' alt='QQ图片20210721213925.png'/> 希望得到建议