acorn tube
n.橡形真空管
热门单词
- a man of business
- abbreviated call letters
- abiotic degeneratiaon
- above price
- Abraham
- abrasion cloth
- abrasive cleaning
- absolute stop marker
- abutting joint
- accepted flag
- accession to a treaty
- accommodationism
- accountable additivity
- accumulative sinking fund
- acetarious
- acetosal
- acetylene regulator
- achondroplastic dwarf
- acid proof
- acidhead
- acidophil granule
