three-roll的音标

The paper describes the O. D. and wall-thickness tolerances and internal/ external surface quality of midium and heavy wall steel pipes produced in Hengyang Steel Pipe Factory by means of φ 108mm three-roll mill complete with a 12-stand slight-stretch reducing mill.

介绍了衡阳钢管厂φ108mm三辊轧管机组配置12架微张力减径机生产中厚壁钢管的外径精度、壁厚精度及内外表面质量情况。

And No. 2 pusher-type furnaces of Angang Medium Plate Plant discharge wide slabs from incline in the course of revamping three-roll mill. Through adopting corresponding measures to optimize the design, good results are made after the furnace is put into production.

在鞍钢中板厂三辊轧机改造中，1、2推钢式加热炉采用了斜坡下滑端出料方式，并采取了相应措施优化设计，投产后取得了良好的效果。

As one of the key equipment of large-sized compound fertilizer plant, the technological parameters of three-roll mill and its structure are described, some typical troubles and their countermeasures are presented.

介绍大型复合肥生产装置中的关键设备之一&三辊破碎机的技术参数和结构，运行中常见的典型故障及分析，对处理方法进行了归纳、总结。