铁路“静音车厢”服务范围拓展

Group 1 - The core point of the article is the expansion of the "silent carriage" service on railways, which will now include more train types beyond the previously limited options [2] - The "silent carriage" service will extend to "D" and "G" series trains, excluding the motion sleeper trains, increasing the total number of trains offering this service to over 8,000 nationwide [2]