system transformation scheme

• 系统改造方案

system transformation scheme的用法和样例：

例句

1. This paper introduced the expansion and transformation plan of Sifang Gold Mine, the production inde-xes and economic benefit after transformation.
   介绍了四方金矿选厂扩建改造方案以及实施后的生产指标和经济效益情况。
2. This paper introduces the modi fi ed scheme urea reactor plate and the result on increasing capacity and lowering consumption.
   介绍了尿素合成塔塔板改造方案及增产降耗效果。