remote sensing
noun [ U ] uk/rɪˌməʊt ˈsen.sɪŋ/ us/rɪˌmoʊt ˈsen.sɪŋ/
遥感探测，遥感技术
the collecting of information about the earth using aircraft and satellites (= electronic devices sent into space)
The technology uses remote sensing to analyze emissions of carbon monoxide. 这项技术利用遥感探测来分析一氧化碳的排放。