light-weight tractor

例句：

1. 1.This new model of light-weight tractor is more efficient than its predecessors.
   这款新型轻型拖拉机比其前代产品更高效。
2. 2. Light-weight tractortechnology has greatly improved agricultural efficiency.
   轻型拖拉机技术大大提高了农业效率。
3. 3. Thelight-weight tractorwas designed to reduce fuel consumptionand emissions.
   这款轻型拖拉机设计用于减少燃油消耗和排放。