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Span Details
放射性炭素年代測定法
radiocarbon dating; carbon-14 datingnoun
で
location, means, or scope markergrammar
遺跡
ruins; archaeological remains; relicsnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
絶対年代
absolute agenoun
が
subject markergrammar
判明
become clear; be identified; turn out to benoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar