physical transport capacity

例句：

1. 1.The train's physical transport capacity is limited by the size of its engine.
   火车的物理运输能力受到其发动机大小的限制。
2. 2. This new technology will greatly improve our country's physical transport capacity.
   这项新技术将极大地提高我国的物质运输能力。
3. 3.The company has been expanding its physical transport capacity to meet increased demand.
   该公司一直在扩大其物理运输能力以满足增加的需求。