英语词汇seconds of arc怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

简明释义

角秒：角秒是角度测量的单位，等于一度的1/3600。角秒常用于天文学和地理学中，用于测量天体的角度大小。

网络释义

1
?秒弧
失常值为40～60秒弧（seconds of arc）。非随机点平面图存在单眼线索，假阳性率较高。
2
?弧秒
弧秒

双语例句

1
It is the ability to separate two closely-spaced stars into two distinct images measured in seconds of arc.
也就是能够分开两个距离很近的两颗星的能力，单位是角秒1(seconds of arc)。
2
Visible light telescopes can resolve a piece of sky just a few arc seconds across — at least 60 times a smaller patch of sky than can be resolved with the human eye.
光学望远镜在数角秒内就能获取一张星空图—至少比肉眼能获取的大60倍。
3
Astrometric Limit: The maximum residual in the place of a reference star, specified in arc seconds.
天文测量误差极限：参考星位置对应的最大误差，用角秒表示。

单词	seconds of arc
释义	seconds of arc 简明释义角秒：角秒是角度测量的单位，等于一度的1/3600。角秒常用于天文学和地理学中，用于测量天体的角度大小。网络释义 1 ?秒弧失常值为40～60秒弧（seconds of arc）。非随机点平面图存在单眼线索，假阳性率较高。 2 ?弧秒弧秒双语例句 1 It is the ability to separate two closely-spaced stars into two distinct images measured in seconds of arc. 也就是能够分开两个距离很近的两颗星的能力，单位是角秒1(seconds of arc)。 2 Visible light telescopes can resolve a piece of sky just a few arc seconds across — at least 60 times a smaller patch of sky than can be resolved with the human eye. 光学望远镜在数角秒内就能获取一张星空图—至少比肉眼能获取的大60倍。 3 Astrometric Limit: The maximum residual in the place of a reference star, specified in arc seconds. 天文测量误差极限：参考星位置对应的最大误差，用角秒表示。
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