combat pollution with pollution

thermal pollution heat pollution

1∶1 power assistant system

3-D Assistant Software

a teaching assistant

accident assistant treatment

administrative assistant in medical section

Administrative Assistant to The Chief Judge

Advertising Assistant

Ag Assistant Director

aid assistant LAP-1

aid-assistant

air assistant

air assistant sprayer

alkaline assistant

An Assistant Artificial Hip Joint

an Assistant Commissioner

and Assistant

Anti-polluting-flash assistant umbrella skirt