连续年金 meaning in English

continuous annuity

On the other hand , the moment , the second moment and variance of the present value random variables about some life annuities and annuities with random interest rate are gotten
另一方面讨论了随机利率下的一些离散年金、连续年金和连续生存年金现值随机变量的一阶和二阶原点矩及其方差。
On the basis of this , some annuities and life annuities with certain interest rate are more discussed . the property of m power of the present value about the discrete and continuous annuities is found as well as some recursion formulae and differential equations about some life annuities
在此基础上，一方面对确定利率下的一些(生存)年金作了进一步地讨论，得到了某些离散和连续年金现值的m ( m 2的整数)次方性质及一些离散生存年金精算现值的递推方程和一些连续生存年金精算现值所满足的微分方程。