weight distribution of locomotive

例句：

1. 1. The engineer carefully calculated the weight distribution of the new car.
   工程师仔细计算了新车的重量分布。
2. 2. The company's weight distribution is based on its profitability.
   公司的权重分配基于其盈利能力。
3. 3. The weight distribution of the materials in the construction project needs to be optimized for efficiency.
   建筑项目中材料的权重分布需要优化以提高效率。