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Span Details
量子電磁力学
quantum electrodynamics; QEDnoun
では
contrastive で + は; then; well thengrammar
微細構造定数
fine-structure constant; Sommerfeld constantnoun
が
subject markergrammar
重要
important; essential; significantna-adjective
な
adnominal form of the copula after a na-adjectivegrammar
役割を果たす。
play a role; serve a function; play a partexpression, verb