LingakuPoradie podľa frekvencie: 49 017. – 50 149.
Ajげんちちょうさ
- field survey; field work (research); on-the-spot investigation
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Vygenerované: This refers to conducting research or investigations in a specific location, typically to gather data or observe conditions directly rather than relying solely on secondary sources.
The researcher conducted a field survey to collect data.