您要查找的是不是：
- 应收账款receivables
- 收汇collect
- 收钱collect money
- 校频器deaccentuator
- 代收collecting for another agency
- 反频器counterdown
- 收账receipt on account
- 除频器frequency eliminator
- 倒频器frequency scrambler
- 应收票据notes receivable
- 换频器frequency changer; frequency converter
- 收视reception
- 三部频器frequency tripler
- 实收official receipts
- 换频器|变频管frequency changer
- 收下furl
- 语言倒频器speech inverter
- 收付receipt and payment
- 移带倒频器band-shift inverter
- 催收collection
