保延
- 网络Houen
保延-
选择将雇员受保年延至69岁。
Select to extend the insured employee coverage to the age of69 .
-
在高频假设条件下，把DSR保幅波场延拓公式中的积分运算进行稳相近似，得到保幅波场延拓的相移公式。
The phase-shift formulae for preserved-amplitude wave field continuation can be obtained by stationary phase approximation for integral operation of DSR preserved-amplitude wave field continuation formulae in a condition of high-frequence hypothesis .