Yin-ch'uan

The Chinese Academy of Sciences held a confetence^([sic – meaning conference]) on sand control recently at Yin-ch'uan for the purpose of examining the results of 8 years of research in sand control on the T'eng-ko'li^([sic – meaning T'eng-ko-li]) Desert.

Source: wiktionary

Yin-ch'uan is now in Ningsia Hui Autonomous Region, which was established in October 1958.

Source: wiktionary

At Yin-ch'uan, Ninghsia Province, local phosphate ore and anthracite were being used to make phosphorus.

Source: wiktionary

A horse market was set up in 727 on the upper reaches of the Yellow River at Yin-chʻuan, whither the Turks came to sell their beasts in exchange for silks and metals.

Source: wiktionary