outside gear asphalt pump

例句：

1. 1. The asphalt pump is essential for maintaining the smooth flow of traffic.
   沥青泵对于保持交通顺畅至关重要。
2. 2. The outside gear in this car is designed to improve fuel efficiency.
   这款车的外部齿轮设计用来提高燃油效率。
3. 3. The asphalt pump was damaged during the recent storm, causing a delay in road repairs.
   近期的暴风雨导致沥青泵损坏，影响了道路修复工作。