The fact is that 45 years later China has become a top grain producer in the world and basically solved the problem of feeding its own people.
而事实上呢，45年以后的中国成了世界上最大的产量国，并且基本上解决了国内的粮食问题。
2
In accordance with proportional solidification principle and limited feeding method, a series of top riser size is recommended to heavy castings.
本文根据均衡凝固原则、有限补缩的方法，推荐了厚大铸铁件的顶冒口尺寸系列。
3
The work principle and maintenance method of bottom gas-feeding brick in top-bottom duplicate blown converter are stated, it is proposed how to make the bricks synchronized with furnace life.