Time areaconcentration diagram lengthways, is more hard to reduce its original appearance.
时间长了，更是难以还原其本来面貌。
2
Surface areaconcentration Csa is a new parameter for indicating the characteristics of debris flow.
表面积浓度c是一种新的表征泥石流体特性的参数。
3
In case of park time areaconcentration diagram longer, should at denovo praxis before commit to thoroughly maintain at a time, replace engine oil, machine to filter etc.