1. Halley was aware that the AU was one of the most fundamental of all astronomical measurements.
哈雷知道，天文单位是所有天文学测量中最基本的。
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2. Halley realised that Mercury was so far away that its parallax angle would be very difficult to determine.
哈雷意识到水星离地球如此之远，以至于很难确定它的视差角。
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3. In November 1677, Halley observed a transit of the innermost planet, Mercury, from the desolate island of St Helena in the South Pacific.
1677年11月，哈雷在南太平洋荒凉的圣赫勒拿岛上观测到了水星（最靠近太阳的行星）的凌日现象。
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4. As Venus was closer to the Earth, its parallax angle would be larger, and Halley worked out that by using Venus it would be possible to measure the Suns distance to 1 part in 500.
21. In 1716, English astronomer Edmond Halley noted, "This is but a little Patch, but it shews itself to the naked Eye, when the Sky is serene and the Moon absent."
1716年，英国天文学家爱德蒙·哈雷记录道：“它只是一小片，但在天空宁静、无月的时候肉眼可见。”
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22. He studied the light curves of asteroids and thus their rotation, and also studied the variable star CZ Cassiopeiae, and the evolution of the orbit of Comet Halley.
张钰哲研究小行星的光变曲线和旋转、CZ仙后座变星以及哈雷彗星轨道的变化。
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23. Banking has a long history of borrowing ideas from science - astronomer Edmund Halley was constructing mortality tables for the life assurance industry back in the 17th Century.
24. The comet was named after the British scientist Edmond Halley, who did a variety of research on the record of giant fireball flying across the sky at the beginning of the 18th century.
25. The company has established the widespread cooperation on technology and business with German BKTEL Corporation, American ORTEL Corporation, the Halley company, and CISCO Corporation and so on.
26. The company has established the widespread cooperation on technology and business with German BKTEL Corporation, American ORTEL Corporation, the Halley company, and CISCO Corporation and so on.
