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Terms for subject Communications (4323 entries)
obstacle detection 障碍物检测
obstruction signal 遮断信号
obstruction signal 遮断信号机
obstruction signal button 遮断信号按钮
obstruction warning device for level crossing 道口障碍报警装置
occupancy indication 占用表示
off-hook 摘钩
off-line maintenance 脱线修
offset method
offset method 永久变形应力测定法
offset process 胶印法
offset Quadrature Phase Shift Keying 偏移四相相移键控
oil pump set 油栗组
omnibus volume 汇编
omnibus volume 选集全一册
On Sight mode 目视行车模式
on the air
on-line maintenance 在线修
onboard 车载
Onboard Application Entity 车载应用实体