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单词
parsec, pc
释义
parsec, pc
秒差距; 天体距离的一种单位。1pc 等于恒星周年视差为1 (角秒)的距离,约等于3.26光年。
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perimenopausal period
perimenopausal syndrome
perimenopause
perimenstrual
periment
perimercurian
perimeristem
PERIMESENCEPHALIC
perimetazine
perimete
perimete arc
perimeter
perimeter acquisition radar
perimeter arc
perimeterarcs
perimeter array antenna
perimeter-based security
perimeter beam
perimeter blasting
perimeter defense
perimeter disturb test
perimeter ditch
perimeter effect
perimeter estimator
perimeter fence
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更新时间:2026/8/22 23:39:10