1. find the trial performance of multi-purpose cleaning machine. From the experiments, find a versatile cleaning machine performance from the lead of each such area.The cement floors, concrete, asphalt road, the silk.
The first trial for the performance of the cleaning purpose. The experimental efficiency of air cleaning equipment from the field to the actual use of each area, such as concrete, asphalt concrete road work that was true.
1 experiment success of air clean purpose. From the experiment the efficiency of air cleaning function from this to the actual usage of each area as well.Cement concrete road surface, road asphalt, the work right.