In China, the liquid milk for consuming is usually produced in the dairies in surburbs of large cities, with the surplus used to make various dairy products.

在中国，以液体状态消费的牛奶，通常是由大城市附近的牛奶厂生产的，生产的多余牛奶则用来制造各种乳产品。

youdao

In good times,the desert provides abundant food for goats and camels, which in turn provide the families with surplus milk and meat to sell in local markets.

VOA: standard.2009.10.06

But it was he who seized control when, after 1970, the EEC started sending its surplus milk powder and butter oil to India.

ECONOMIST: Verghese Kurien

Declining milk consumption is hitting the country's northern dairy-producing region, so a local liquor storeowner decided to turn some of the surplus milk into beer.

NPR: It's Milk. It's Beer. It's 'Bilk'