3. Please check the attachment pictures about the Water Coaster driving chain. Some sections are connected by pin and some are connected by riveting. But some section is in welding. Please solve this question on site.的翻译：什么意思？中文翻译英文，英文翻译中文，怎么说？

3。请有关水杯垫驾驶链的附件图片。部分路段连接针和一些铆连接。但有些部分是焊接。请现场解决这个问题。