viscous behaviour

例句：

1. 1.The fluidity of the liquid is due to its high viscosity.
   液体的流动性是由于其高黏度。
2. 2. The viscous behavior of the material under stress can be used to predict its failure.
   材料在应力下的行为可以用于预测其失败。
3. 3.The viscous behavior of the oil in the engine was causing a lot of problems.
   发动机中的油的黏稠行为导致了很多问题。