perigee

英 ['perɪdʒiː]美 ['pɛrɪdʒi]

n. 近地点

中文词源

perigee 近地点

peri-,在附近，-gee,土地，词源同geology,Gaia.

英文词源

perigee

perigee: see apogee

perigee (n.)

"point at which a celestial body is nearest the Earth," 1590s, from Modern Latin perigeum (15c.), from Late Greek peregeion, used by Ptolemy as a noun, properly neuter of adjective perigeios "near the earth," from peri ges, from peri "near" (see peri-) + ges, genitive of ge "earth" (see Gaia).

双语例句

1. When perigee and perihelion coincide tidal range is at its greatest.

当月球与地球到达它们的近地点和近日点的时间恰好重合时,就会引起最大的潮汐.

来自辞典例句

2. The Moon reaches its absolute perigee once a year.

月球每年有一次达到它的绝对近地点.

来自辞典例句

3. The time between two passages at the perigee ( of the Moon ).

月球连续两次经过近地点所需的时间.

来自互联网

4. Due to lunar precession , this time is longer than that if the perigee's position was fixed.

由于月岁差的关系, 这个时间比近地点不变的情况下所需之时间长.

来自互联网

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