acetylene welder
乙炔焊机气焊机
热门单词
- absolute atmosphere
- absorbents of carbon monoxide
- absorption trap
- absorption type gauge (压延用)
- abutment joint
- accountant file
- accrual system
- accumulated divergence
- accuracy life
- acetypromazin maleate
- acknowledge cycle
- acoustic signature
- acoustic transmission coefficient
- acoustic trauma
- acoustical tile
- actinomycin D
- actinomycosis
- activating reagent
- active glacier
- active growth stage
- active relation
