- 调查局 diàochájú investigation agencya government agency responsible for investigations; often refers to foreign agencies like the FBI in Chinese contexts.
- 民意调查 mínyìdiàochá opinion poll
- 市场调查 shìchǎngdiàochá market research
- 调查者 diàocházhě investigator
- 调查组 diàocházǔ investigation teama group of people organized to conduct an investigation or inquiry
- 联邦调查局 Liánbāng Diàochájú FBIFederal Bureau of Investigation (FBI)
- 调查表 diàochábiǎo inventory lista document used for recording and checking items, assets, or stock during an audit or investigation
- 调查员 diàocháyuán investigator
- 中国地质调查局 Zhōngguó Dìzhì Diàochájú China Geological SurveyChina Geological Survey (CGS)
- 调查团 diàochátuán investigating teaman investigating team or task force
- 美国地质调查局 Měiguó Dìzhì Diàochájú USGSUnited States Geological Survey (USGS)
- 调查人员 diàochárényuán investigator
- 田野调查 tiányědiàochá fieldworkfield research; fieldwork
- 本底调查 běndǐdiàochá background investigation
- 调查核实 diàocháhéshí investigate and verifyto conduct a formal investigation to confirm the truth or accuracy of facts
- 尽职调查 jìnzhídiàochá due diligencedue diligence (law)
- 调查结果 diàochájiéguǒ findingsresults of an investigation or poll
- 出口调查 chūkǒudiàochá exit poll
- 人口调查 rénkǒudiàochá census
- 身家调查 shēnjiādiàochá background checkto do a background check on someone
- 背景调查 bèijǐngdiàochá background check
- 追踪调查 zhuīzōngdiàochá follow-up studyA longitudinal research method involving repeated observations of subjects over an extended period.
- 舆论调查 yúlùndiàochá opinion poll
