河南农春节习俗--过油。Chinese Henan Agricultural Spring Festival Customs-Over Oil 

在河南农村每到逢年过节，就把买来的猪牛鸡鸭鱼肉，改刀腌制，然后过油便于烩菜或者蒸制。
In the rural areas of Henan Province, the pork, beef, chicken, duck, and fish meat is marinated with a knife, and then oiled for cooking or steaming.