secondary dump system

例句：

1. 1.The new secondary dump system has greatly improved the efficiency of waste disposal.
   新的次级排放系统大大提高了废物处理的效率。
2. 2. The design of this secondary dump system is innovative and practical.
   这个次级排放系统的设计是创新且实用的。
3. 3.The secondary dump system helps to reduce the environmental impact of industrial waste.
   次级排放系统有助于减少工业废物对环境的影响。