In addition,the traditional design of wide inlet scoop of particleboard cross-cut saw resulted in large flux,big pressure loss and severe pollution,however,after turned from fixed wide inlet scoop to mobile narrow inlet scoop,the three indexes above-mentioned were improved greatly with good economic and social benefits.

A movable wind erosion tunnel and whirl type separation sand sampler designed by Inner Mongolia Agricultural University were used to collect the soil particles during the soil erosion by wind event.