1、an additional telephone set that is connected to the same telephone line.
連在同一電話線上的額外的電話機。

2、Please clean the telephone set including the dial.
請將電話機清理一下，包括撥號盤。

3、This product is of secure type consisting of telephone set and coupler,.
本產(chǎn)品為本質(zhì)安全型，由電話機和耦合器兩部分組成。

telephone set翻譯