mechanical timepieces spurred the search for more accurate sundials with which to regulate them-with whom 是什么的用法

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mechanical timepieces spurred the search for more accurate sundials with which to regulate them-with whom 是什么的用法

mechanical timepieces spurred the search for more accurate sundials with which to regulate them-with whom 是什么的用法
mechanical timepieces spurred the search for more accurate sundials with which to regulate them-with whom 是什么的用法

mechanical timepieces spurred the search for more accurate sundials with which to regulate them-with whom 是什么的用法
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