With the dilatational frequency increasing, the dilatational modulus, dilatational elasticity increase and dilatational viscosity, phase Angle decrease.
随扩张频率的增加，扩张模量、扩张弹性逐渐增大，而扩张粘度、相角逐渐减小。
3
The sliding movement between piece structures is easy to take place in DQ1, 3, 10, 15, resulting their dilatational viscosity unchangeable with the dilatational frequency increasing.