acetylene welding set
【化】 乙炔焊装置; 乙炔气焊装置
热门单词
- A cat has nine lives
- a mountain of flesh
- a skeleton in the closet
- abatardissement
- Abies excelsa Poiret
- abiotrophic degeneration
- abnormal statement
- ABO
- abrasion
- abrin
- absolute system
- abstract norm
- abstracting service
- abutilon
- ac exciter
- accelerating electrode
- acceptable quality limit
- acceptance testing
- accession offender
- accidental bursa
- account in arrear
