noun🔗Share揺れ、微動The act of librating."The child's librations of his arms and legs helped him to calm down. "子供の腕と脚の揺れは、彼を落ち着かせるのに役立ちました。astronomyphysicsChat with AIVocabulary GamePractice Reading
noun🔗Share天秤動The apparent wobble or variation in the visible side of the Moon that permanently faces the Earth, allowing observers on Earth to see, over a period of time, slightly more than half of the lunar surface."The moon's librations allow us to see a little bit more of its surface over time, as it appears to wobble slightly in the sky. "月の天秤動は、空でわずかに揺れているように見えるため、時間の経過とともにその表面を少し多く見ることができます。astronomyspacesciencephenomenaChat with AIVocabulary GamePractice Reading
noun🔗Share揺れ, 振れ(by extension) A similar rotational or orbital characteristic of some other celestial body."The Earth's librations affect the timing of our sunrise, and similarly, the moon's librations cause us to see slightly different portions of its surface from Earth. "地球の揺れは日の出のタイミングに影響を与え、同様に、月の揺れは私たちが地球から月の表面のわずかに異なる部分を見る原因となります。astronomyphysicsspaceChat with AIVocabulary GamePractice Reading
noun🔗Share振動A vibrational degree of freedom whereby a group of atoms partly rotates back and forth, similar to the Moon's motion."The scientist observed the librations of the small molecule, noting its slight back-and-forth rotational movement under the microscope. "科学者は、顕微鏡下でのわずかな前後の回転運動に注目し、小さな分子の振動を観察した。physicsastronomytechnicalchemistryChat with AIVocabulary GamePractice Reading
