tubelining

例句：

1. 1. The engineers weretasked with installing the new tubelining in the pipeline.
   工程师们被指派安装新的管道衬里。
2. 2. The company isinvesting in research and development to improve thequality of its tubelining materials.
   该公司正在投资研发，以提高其管道衬里材料的质量。
3. 3. The new tubelining systemhas been designed to reduce maintenance costs andincrease operational efficiency.
   新的管道衬里系统已被设计为减少维护成本并提高运营效率。