activity theory of learning
学习活动论
热门单词
- accelerated curing of concrete
- accidental work injury
- acescent
- acid albumin
- acid container
- acid embossing
- acid fixing salt
- acoustic filter
- acoustooptical phenomenon
- Acronol dye
- acrosome
- actinic lamp
- actinoquinol
- active radar
- active redundancy
- active superfine calcium carbonate
- additive-containing nylon
- adiabat
- adjustable gear shaving cutter
- admissible limit
- admissible test
