Words, grammatical forms and meanings linked to the ontology.
From the Hanyu Pinyin romanization of the Mandarin 硯山 /砚山 (Yànshān).
yue 硯山 /砚山 (county) · cmn 硯山 /砚山 (county)
From the Hanyu Pinyin romanization of the Mandarin 鉛山 /铅山 (Yánshān).
cmn 鉛山 /铅山 (county) · yue 鉛山 /铅山 (county)
From Hanyu Pinyin romanization of the Mandarin 燕山 (Yānshān).
The geomorphology has been modified by the flow of Luanhe and several other major rivers which run through the Yanshan mountains and the plain to reach Bohai.1988, The Great Tangshan Earthquake of 1976: An Anatomy of Disaster, Pergamon Press, →ISBN, →LCCN, →OCLC, →OL, page 3: