active master file
常用主文件现用主文件
热门单词
- a catastrophic flood
- absorption efficiency
- absorption lens
- AC bias
- accelerating cavity
- accepted flag
- accessible boundary point
- accretionary basin
- accumulated profit
- acetidin
- acetone cyanohydrin
- acetrizoic acid
- acetylene bond
- acid cell
- acid-treated oil
- Acipenseriformes
- Ackerman front axle
- acne necrotica
- acorn barnacle
- acoustic mode
- acoustooptic modulation
