DictionaryForumContacts

   Chinese
Google | Forvo | +
to phrases
拱心石 gǒngxīnshí
archit. closer; headstone; key
el. choke stone
eng.geol. head stone; keystone
tech. arched keystone; key-stone
拱心〔顶〕石
gen. key; keystone
拱心 石: 6 phrases in 3 subjects
Architecture1
General1
Technology4