acetylene cutting
乙炔切割氧炔切割
热门单词
- abdominal white (稻米)
- abosrption spectrogram
- absence of middle ear
- absorption trap
- accessory thymic nodules
- accessory verlebral vein
- accumulating level
- acid clay
- acid-base titration detector
- aciding
- acoustic amplifier
- acoustic ionization
- acoustic modification
- Acrotretida
- acrylate coated fiber
- acrylic nitrocellulose lacquer
- acrylonitrile copolymer
- actinopraxis
- action painting
- activator atom
- active chaff
