surveillance

监督；监视英释中释nwhen the police, army etc watch a person or place carefully because they may be connected with criminal activities

1 surveillance system,n. 观测系统，监视系统

2 surveillance radar,监视雷达

3 electronic surveillance,电子监视

4 surveillance ship,侦察船，监视船

5 immune surveillance,免疫监督

1 electronic surveillance equipment.电子监控设备