accident boat
救生艇
热门单词
- abrasive disk
- absolute discrimination
- absolute threshold of luminance
- acanthine gum
- acceleration vector
- acetylenic compound
- acrylic fibre cloth doll
- acrylic polyurethane enamel
- active attention
- active learning
- active sensor
- adherent placenta
- adhesive disc
- adhesive for decorative sheet
- adiabatic exponent
- adolescarin
- adolescent problems
- aeolian processes
- aerial system
- Aero cyanamid
- aeronautical station
