... paraelastic resonance顺弹性共振 parallactic angle视差角 parallactic shift视差移动 ...
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航海航天英语词汇大全第3283页 ... paraldehyde三聚乙醛 parallacticangle=positionangle视差角 parallacticangle视差角 ...
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... angle of obliquity n.斜角 angle of parallax n.视差角 angle of photographic coverage n.摄影视场角 ...
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... parallactic triangle 视差三角形 parallax angle 视差角 parallax factor 视差因子 ...
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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。
Halley realised that Mercury was so far away that its parallax angle would be very difficult to determine.
由于金星离地球更近，所以它的视差角会更大。哈雷计算出，利用金星可以测量出太阳与地球之间的距离，误差为五百分之一。
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.
这个角差称为金星视差，可以做为地球和金星距离的指标，因为两个数值互成反比。
This angular shift, called the parallax of Venus, would provide a measure of the distance between Earth and Venus because the two quantities are inversely proportional to each other.
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