Hypernyms:closed-circuit television
Inherited Hypernyms:surveillance systemclosed-circuit televisiontelevisiontelecommunication systemcommunication systemsysteminstrumentalityartifactwholeobjectphysical entityentity
单词 | surveillance system |
释义 | Surveillance System nnoun.artifacta closed-circuit television system used to maintain close observation of a person or group Hypernyms:closed-circuit television Inherited Hypernyms:surveillance systemclosed-circuit televisiontelevisiontelecommunication systemcommunication systemsysteminstrumentalityartifactwholeobjectphysical entityentity |
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