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.

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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.

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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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总结了测距功能的软硬件实现技术，包括传统的三角测量和视差测距技术、电脉冲测距技术、伪码扩频脉冲串测距技术。

Software and hardware implementation of ranging was sum up including triangulation & parallax measuring, pulse current ranging and pseudo random noise ranging.

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摘要：提出一种基于三角形网格的浓密视差图提取算法。

Absrtact: an algorithm of dense disparity map extraction is presented based on triangulation mesh.

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它是建立在三角视差的基础上的。

It is called the "Pillars Of Creation".

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它是建立在三角视差的基础上的。

It is called the "Pillars Of Creation".

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