nozzle contour

例句：

1. 1. The engineer designed the nozzle contour to optimize the flow of the fuel.
   工程师设计了喷嘴轮廓，以优化燃料的流动。
2. 2.The nozzle contour is critical for maintaining consistent spray coverage.
   喷嘴轮廓对于保持均匀喷洒覆盖至关重要。
3. 3. The design team worked tirelessly to refine the nozzle contour for better performance.
   设计团队不懈努力，以改进喷嘴轮廓，提高性能。