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libration    音标拼音: [lɑɪbr'eʃən]
n. 振动,天平动

振动,天平动

libration
n 1: (astronomy) a real or apparent slow oscillation of a moon
or satellite; "the libration of the moon"

Libration \Li*bra"tion\ (l[-i]*br[=a]"sh[u^]n), n. [L. libratio:
cf. F. libration.]
1. The act or state of librating. --Jer. Taylor.
[1913 Webster]

2. (Astron.) A real or apparent libratory motion, like that
of a balance before coming to rest.
[1913 Webster]

{Libration of the moon}, any one of those small periodical
changes in the position of the moon's surface relatively
to the earth, in consequence of which narrow portions at
opposite limbs become visible or invisible alternately. It
receives different names according to the manner in which
it takes place; as: {(a)} Libration in longitude, that
which, depending on the place of the moon in its elliptic
orbit, causes small portions near the eastern and western
borders alternately to appear and disappear each month.
({b}) Libration in latitude, that which depends on the
varying position of the moon's axis in respect to the
spectator, causing the alternate appearance and
disappearance of either pole. ({c}) Diurnal or parallactic
libration, that which brings into view on the upper limb,
at rising and setting, some parts not in the average
visible hemisphere.
[1913 Webster]


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  • Moses the Black - Wikipedia
    Moses the Black (Greek: Μωϋσῆς ὁ Αἰθίοψ, romanized: Mōüsês ho Aithíops; Arabic: موسى الاسود; Coptic: Ⲙⲟⲥⲉⲥ; 330–405), also known as Moses the Strong, Moses the Robber, and Moses the Egyptian, was an ascetic hieromonk in Egypt in the fourth century AD, and a Desert Father
  • Life of St. Moses the Black
    Saint Moses the Black lived during the fourth century in Egypt He was an Ethiopian, and he was black of skin and therefore called “Murin” (meaning “like an Ethiopian”) In his youth he was the slave of an important man, but after he committed a murder, his master banished him, and he joined a band of robbers
  • Moses The Black - Catholic Saints Day
    Moses the Black, also known as Saint Moses the Robber, was a significant figure in the Catholic Church renowned for his remarkable transformation and commitment to the faith He was born around 330 AD in Ethiopia and initially led a life of sin as a gang leader and robber
  • Saint Moses the Black - Orthodox Road
    One of the first saints I encountered while researching Orthodoxy was St Moses the Black (also called the Ethiopian) There was something about his unconquerable spirit, when faced with temptation, that greatly inspired me
  • The Life and Legacy of Saint Moses the Black - Of One Tree
    Saint Moses the Black, also known as Saint Moses the Ethiopian, is a revered figure in Christian history His life was filled with extraordinary experiences and his teachings continue to inspire people even today
  • Moses the Black, St. | Encyclopedia. com
    Ethiopian by race, Moses was one of the most picturesque of the desert fathers First a servant or slave of an Egyptian official, he was dismissed for his immoral conduct and continual thefts, and he took to brigandage and soon gathered a gang that terrorized the district
  • St. Moses the Black | EWTN
    Moses the Black, sometimes called the Ethiopian, was a slave of a government official in Egypt who dismissed him for theft and suspected murder He became the leader of a gang of bandits who roamed the Nile Valley spreading terror and violence He was a large, imposing figure
  • Moses the Black | Orthodox Lives of the Saints
    Saint Moses the Black, also known as Abba Moses, stands as a powerful testament to the transformative power of repentance and redemption From a life of crime to becoming a revered desert monk, his journey is one of profound change, embodying the very essence of Christian transformation
  • How Moses the Black went from gang leader to holy abbot - Aleteia
    St Moses was enslaved, committed murder, became leader of a gang, and then changed his ways forever An ascetic monk born in Ethiopia in 330, Moses the Black is known as a “Desert Father” and
  • From Robber to Saint: the Life Story of St. Moses the Black
    St Moses lived in Egypt during the fourth century He was a very dark-skinned Ethiopian, and thus is also called St Moses the Black In his youth he was a slave of a high-ranking man, but after Moses committed a murder, his master banished him





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