- 调查研究: investigation and study
- 实地调查: fact finding
- 实地调查研究: field research
- 实地调查；现调查: on-site inspection
- 实地调查: factfinding; field investigation; field survey; field work; fieldinvestigation; fieldwork; on-site inspection; on-the-spot investigation; site survey; sitesurvey
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