轻质车架

例句：

1. 1. The new car has a lightweight chassis that makes it more fuel-efficient.
   这款新车有一个轻质车架，使其更加燃油经济。
2. 2. The engineer designed the lightweight chassis to reduce weight and improve performance.
   工程师设计了轻质车架，以减轻重量并提高性能。
3. 3. The lightweight chassis is essential for the car's handling and stability.
   轻质车架对于汽车的操控性和稳定性至关重要。