问题描述:
英语翻译
If the geometry of the instrument is perfect,then when the rotation axis is vertical the tansit axis will be horizontal and the line of sight will sweep out a vertical plane when the telescope is elevated or depressed
If the geometry of the instrument is perfect,then when the rotation axis is vertical the tansit axis will be horizontal and the line of sight will sweep out a vertical plane when the telescope is elevated or depressed
问题解答:
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