gravitational redshifts
(espionage) A secret agent recruited by another agent, and having no direct contact with the agency.
plural of gravitational redshift
A surname from German.
(archaic) Containing or making correction; corrective.
天文学者たちは中性子星のスペクトルに見られる重力による赤方偏移を観測して、その強烈な重力場を調べた。
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