on-hook
英 [ɒn hʊk]
美 [ɑːn hʊk]
n. 挂机
双语例句
- A piece of completely theoretical basis is presented in order to resolve the software design emphasis of the accounting device, such as the procedure design of off-hook and on-hook and dialing pulse recognition.
对计费器软件的重点，即摘、挂机及拨号脉冲识别程序的设计，提出了一套完整的理论依据。