grain tempering

例句：

1. 1. The chef uses a special machine to grain temper the meat before cooking it.
   厨师使用一种特殊的机器在烹饪前对肉类进行精磨处理。
2. 2.This process helps to remove impurities from the grains and improve their quality.
   这个过程有助于从谷物中去除杂质并提高其质量。
3. 3. The grain tempering is done to make the bread softer and more flavorful.
   谷物精炼是为了使面包更柔软、更有风味。