舆图集 「煤」(物)。https://yutuji.com/thing/mei/(2026-10-26 访问)@misc{yutuji_thing_mei,
title = {煤},
author = {舆图集},
year = {2026},
url = {https://yutuji.com/thing/mei/},
urldate= {2026-10-26}
}https://yutuji.com/thing/mei/本页地址不会变。整套数据与许可在数据页。