Mechanical properties of the selected artificial turf systems.
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System 1: Compacted gravel sub-base without elastic layer; System 2: Compacted gravel sub-base with elastic layer; System 3: Asphalt sub-base without elastic layer; System 4: Asphalt sub-base with elastic layer.FR = Force Reduction; StV = Standard Vertical Deformation; ER = Energy Restitution; RT = Rotational Traction.a,b,c,dSignificant differences with the system indicated (pMechanical properties of the selected artificial turf systems.
创建时间：
2015-12-02
