multi-channel slab kiln

例句：

1. 1. The multi-channel slab kiln is an essential tool for the production of high-quality steel.
   多通道板坯窑是生产高质量钢材的必备工具。
2. 2. The new multi-channel slab kiln has significantly improved the efficiency of the process.
   新型多通道板坯窑大大提高了生产过程的效率。
3. 3. The engineers have been working on developing a more efficient multi-channel slab kiln design.
   工程师们一直在努力开发更高效的多通道板坯窑设计。