3D打印桥梁结构件每段上都有相应的标号组装左半边桥梁组装右半边桥梁左右两部分和中间连接件底座底座桥体全部合拢;
2026-09-16 10:20:56
2026-09-16 10:19:16
2026-09-16 10:17:56
2026-09-16 10:16:48
2026-09-15 09:57:49
2026-09-15 09:56:41
2026-09-15 09:55:09
2026-09-15 09:53:58