heavy-fuel engine

例句：

1. 1. The heavy-fuel engine is capable of running for long periods without needing to be refueled.
   这种重油发动机可以在不需要加油的情况下运行很长时间。
2. 2.The heavy-fuel engine is used in construction machinery, where it can withstand the weight and power demands of heavy work.
   这种重油发动机用于建筑机械中，能够承受重工作的重量和功率需求。
3. 3. The heavy-fuel engine is a popular choice for those who require high performance and durability in their vehicles.
   这种重油发动机是那些需要高性能和耐用性的车辆的热门选择。