age stratification
年龄分层
热门单词
- ability of memory
- abnormal distribution
- abnormal reflections
- AC measuring instrument
- accelerated child
- achromatocyte
- acid-proof ink
- acmite
- aconite
- acoustic absorption
- acoustic radiator
- acropathy
- Acrybel
- action variable
- actodigin
- actual exposure
- actual number
- actuating detector
- acylnitrene
- adapter bush
- adaptive control optimization
