电话分机 extension ; [通信] extension telephone ; telephone extension ; ext

会议电话分机 conference telephone subset

调度电话分机 dispatching telephone subset

脉冲源分光电话机 pulsed-source spectrophone

前台服务电话分机 Receptionist phone extensions ; Front desk phone extension ; Reception service ext

外部电话分机 [通信] outside extension

最新电话分机表 New phone extension table ; Latest extension table

行李服务电话分机 Luggage service phone extension ; Baggage service extension ; Baggage Services ext