acetylene welder
乙炔焊机气焊机
热门单词
- ablatograph
- absorption cross section
- acceleration type PCG microphon
- accessory equipment
- accompanying mineral
- account books
- accounting rate
- accounts are not in order
- accumulation season (冰川的)
- accumulational relief
- acerous
- acid cure
- acid-cured varnish
- acme thread tap
- acoustic effects
- acoustooptics
- acropolis (指古希腊城市的卫城)
- across-the-line motor
- active display
- active defence against locusts
- active electric network
