activity rating
活动评等
热门单词
- abrasion machine
- absolute altimeter
- absorption of sound
- abstraction experiment
- acceleration of gravity
- access controller
- accordion
- acetyl value
- acid etching machine
- acid-resistant coating
- acid-resistant refractory brick
- acid-resisting brick
- acidized graphite granule
- aconitum
- actinic
- action of stereotype
- action potential
- acute rheumatism
- adaptation tolerance
- adapter carburetor
- adaptive filter
