accidental sampling
随意抽样
热门单词
- abrasion testing machine
- Ac = alternating current
- acanthite
- accidental inclusion
- acetamide
- acetanilide powder
- acid drop
- acid firebrick
- acid resistant
- acousticon
- Acridel
- acrocarpous
- acrylic epoxy baking paint
- acrylic underwear
- adaptive conformity
- adaptive form
- adenolymphitis
- adiabatic state
- adjusting gear
- adolescarin
- adolescent fire setter
