essential optional service 基本选项服务
second optional service 第二次可选服务
the optional service 可选择服务
optional subscription-time selectable service 任意预约时间可选服务
Self-service service terminal 身份认证; 数字证书
single-plane (through-plane service) service 原機直達飛航
Break of Service, Out-of-Service 业务中断
free medical service; free medicare; public health service 公费医疗
in service and out of service 投退
overland common point service {= OCP service} 北美西岸内陆转运服务
search and rescue service {= SAR service} 搜救业务
service oriented architecture service SOA服务
Value Added Service (VAS)New Service 增殖业务b.新业务
Ⅰ-type optional increasing paths Ⅰ型可选增道路
Additional for Optional Destination 选卸港附加费
baskeball optional course 篮球专选
bead seat optional contours 可选择的胎圈座轮廓
bilateral optional forward contracts 双边可选择远期合同
contextually optional element 前后文选项元素