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field survey; field work (research); on-the-spot investigation
専門家が現地調査に赴いた。
Experts went out for a field survey.
現地調査の結果を報告書にまとめた。
I compiled the field survey results into a report.
専門家チームが被災地で現地調査を行い被害の状況を把握した。
A team of experts conducted a field survey in the disaster area to assess the damage.