Lanyin Mandarin

Lan–Yin Mandarin (Lanyin) (simplified Chinese: 兰银官话; traditional Chinese: 蘭銀官話; pinyin: Lán–Yín Guānhuà) is a dialect of Mandarin Chinese traditionally spoken throughout Gansu province and in the northern part of Ningxia. In recent decades it has expanded into northern Xinjiang. It forms part of Central Mandarin (中部官话) with Central Plains Mandarin (中原官话). The name is a compound of the capitals of the two former provinces where it dominates, Lanzhou and Yinchuan, which are also two of its principal subdialects.

Among Chinese Muslims, it is sometimes written in the Arabic alphabet.