您要查找的是不是：
- 弹性elasticity
- 弹性的stretch
- 塑料管silent stock tube
- 弹性模量elasticity modulus
- 有弹性flexible
- 有弹性的willowy
- 一段塑料管道a length of plastic piping
- 弹性力学elastic mechanics
- 弹性系数elastic coefficient
- 价格弹性price elasticity
- 粘弹性viscoelasticity
- 高弹性long range elasticity
- 弹性变形elastic deformation
- 弹性蛋白elastin
- 富有弹性high resilience
- 弹性塑料管.flexible plastic tubing
- 需求弹性elasticity of demand
- 回弹性rebound resilience
- 弹性挡圈elastic collar
- 弹性纤维spandex fibre
