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ols on line service
在线服务  detail>>
ols on line search
在线搜索  detail>>
ols on line spare
在线备用  detail>>
ols on line system
在线系统  detail>>
ols optical line system
光纤线路系统  detail>>
ols outgoing line signaling
去话线路信令  detail>>
ols
厄尔斯 航舰光仪著陆系统 普通最小二乘法 沙  detail>>
in-the-line service
自取菜馆;自助菜馆  detail>>
line service
线路保养  detail>>
on line service
连线程序最佳化  detail>>
service line
1.【电学】用户进线。 2.【网球】发球线。   detail>>
a continuous line service
一条龙服务  detail>>
air line service
航空班机  detail>>
alternate line service
切换线路服务  detail>>
b service line
发球线  detail>>
branch line service
支线列车运行  detail>>
center service line
中心  detail>>
centre service line
中线  detail>>