a-b toll trunk
【电】 甲乙长途中继线, AB长途中断线制
热门单词
- Abegg's rule of eight
- abieninic acid
- absolute hemianopsia
- absorbent solution
- absorptive transition
- abstract juristic act
- academician
- acanthosis
- Acarus gallinae
- acceleration coefficient
- acceptance gauge
- acceptance of bill of exchange
- acceptance payable
- accident-prone
- accomplishments
- account department
- accountably
- accounting law
- accrued taxes
- accumulation register
- acerbate
