Public welfare environmental smog plan PPT template

In another month, friends in the north can enjoy the warmth brought by the heating. In the convenience of enjoying the heating, we also need to protect the environment, reject the smog, and have a clean blue sky.

In another month, friends in the north can enjoy the warmth brought by the heating. In the convenience of enjoying the heating, we also need to protect the environment, reject the smog, and have a clean blue sky.