action centre
机械设计通用计算机通用数字控制机床作用中心
热门单词
- a man of mould
- Abnaki
- aborigines
- abscission ring
- absolute calibration source
- absorptiontester
- academic section
- accepted bill of advice
- acetal formation
- acetylimino
- acetylglucosamine
- achromatic doublet
- acid cooking
- acid lining
- acid proof concrete
- acid seal paint
- acinacifoliate
- ACK
- acknowledgment money
- acorn sugar
- acoustic mine
