Terms containing trunk service

Subject	English	Chinese
el.	remote service trunk module	远程服务中继模块
el.	service trunk	勤务线路
el.	trunk class of service	业务中继等级
el.	trunk group class of service	中继线群业务类别
econ.	trunk line service	长途业务
busin.	trunk line service	长途通信
telecom., brit.	trunk service	长途业务
exhib.	trunk service	干线
avia.	trunk service	地面运输业务
auto.	trunk-line service	汽车公路干线上使用
el.	video call waiting service trunk	视频呼叫等待业务中继线