side emission

例句：

1. 1. The car's side emission levels have been reduced significantly.
   这辆车的侧面排放水平已经显著降低。
2. 2.The factory has strict regulations on side emissions to protect the environment.
   该工厂对侧面排放有严格的规定，以保护环境。
3. 3.During testing, the side emission of the vehicle was found to be within acceptable limits.
   在测试期间，车辆的侧面排放被发现在可接受的范围内。