Weatherfronts are bound up with a frontal cyclone.
天气的锋面和锋面气旋密切相关。
2
Low pressure systems pickup their local weather and move it in weatherfronts.
低气压流会把本地的气候沿着锋面传播。
3
My advice to them at this point is to keep up the good work and then pray to the Mongolian Weather Gods to send cold fronts. That's their best hope for clean air.