chain-and-scraper conveyer

例句：

1. 1.The chain-and-scraper conveyer is used to transport heavy materials over long distances.
   链条式刮板输送机用于运输重物料，跨越长距离。
2. 2. The chain-and-scraper conveyer is an essential tool for material handling in factories.
   链条式刮板输送机是工厂中物料搬运的必备工具。
3. 3. The chain-and-scraper conveyer has proven to be a cost-effective solution for transporting bulk materials.
   链条式刮板输送机证明是一种经济有效的大宗物料运输解决方案。