achromatic objective
消色差物镜
热门单词
- 15-piece tea set
- ABIH =American Board of Industrial Hygiene
- abrazite
- accounting computer
- accuracy grade
- accurate ajusting
- acid orange
- acid sulfite
- acidity of soil
- acidophilic
- acoustic brick
- acoustic resonance
- acrylic fleecy sweater and trousers
- acrylic semi-gloss orange figured water soluble baking paint
- action system
- action turbine
- activation center
- activation theory
- active electrode
- active participation
- actual head
