| 摘要 |
A brush with a varying geometry for disclosing plant roots comprising a drum with a vertical rotational axle with rod nap fixed on surface thereof. In addition, on the drum, divided into four segments, rods of the nap are fixed. Said rods are capable of changing an inclination angle as regards to soil dikes on the account of varying the geometry of the drum, on which they are fixed as rows along the vertical rotation axle as blades. |
