equivalent viscous damping

例句：

1. 1. The two teams are equally matched in skill and experience.
   两队在技能和经验上势均力敌。
2. 2.The price of the house is equivalent to the cost of the furniture.
   这所房子的价格与家具的费用相当。
3. 3. The equivalence of the two numbers can be found by subtracting one from the other.
   这两个数的等价可以通过相减得到。