Longton

例句：

1. 1.The ship's cargo was measured in Longtons, not tons.
   这艘船的货物是以长吨计量的，不是以吨计。
2. 2.The engineer calculated the weight of the materials based on their Longton content.
   工程师根据材料的长吨含量来计算材料的重量。
3. 3. The company is planning to increase its production capacity by 5000 Longtons.
   该公司计划将其生产能力提高5000长吨。