AC spark source
交流火花光源
热门单词
- abrasion groove
- abrasion hardness
- absorption water
- accelerating chain
- acceleration
- acceleration disturbance
- acceptance of promissory notes
- acceptance value
- acetyl hydrate
- acetylsulfalene
- achromatic convex lens
- achromatic ocular
- acid bronze alloy
- acoustic beam deflector
- acquisition of right
- acreage allotments
- acrylic baking enamel
- acrylic tile
- acrylonitrile copolymer
- action variable
- activated surface
