On the basis of the need on developing guide roller of Baosteel plate slab continuous casting machine, the two belt electrode build-up welding machines were designed and manufactured.
根据开发宝钢板坯连铸机导辊产品的需要，设计并制造了两台带极堆焊机。
2
By using the method of tectonic slab mapping in the continental orogenic belt, the authors carried out a systematic study of the Tazang tectonic belt of Jiuzhaigou.