[líng]
[名]
(岁数) age; years
old age; advanced in years
老龄
school-age children
学龄儿童
advanced in years
高龄
the same age
同龄
(年限) length of time; duration
length of military service
军龄
length of service; years of service
工龄
(某些生物体发育过程中不同的阶段) instar
adult instar
成虫龄
larval instar
幼虫龄
pupal instar
蛹龄