equation of payments

• 平均分期付款

equation of payments的用法和样例：

例句

1. The instalment is payable at the end of each quarter.
   分期付款每季度末进行。
2. The heavy monthly payments gave pause to Mr.Smith in his plans to buy a new car.
   每月的巨额分期付款使史密斯先生对于是否计划买一辆新车感到举棋不定。