It deals with the invention and development of time-keeping apparatus in our country during a historical period of some three thousand years, tracing this development from remote antiquity with its sundial and clepsydra making use of the shadow of the sun down to the Dynasties of Han, Sui, Tang and Sung with their water-powered astronomical clockworks insta...

內(nèi)容論述我國古代三千年左右有關(guān)計時器的發(fā)明和發(fā)展，自遠古利用日影的圭表和日晷起黄页视屏在线看，中間經(jīng)漢日韩欧美中文精品第一页、隋、唐亚洲人成色4444在线观看、宋等朝代隐私网占，附裝在水力天文儀器上的水力天文鐘，都采用了齒輪和凸輪的傳動www.aiai2000.com，即已都屬于機械性aaa视频色。

It deals with the invention and development of time-keeping apparatus in our country during a historical period of some three thousand years, tracing this development from remote antiquity with its sundial and clepsydra making use of the shadow of the sun down to the Dynasties of Han, Sui, Tang and Sung with their water-powered astronomical clockworks...

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Antiquity is full of eulogies of another more remote antiquity.

Voltaire 古人充滿了對更遙遠古人的頌揚∶琅闾寤仆?8禁无遮挡！鼱柼?/p>

in all ages;at all times;since remote antiquity：古往今來

stretch in all directions;be accessible from all directions四通... | in all ages;at all times;since remote antiquity古往今來 | appear and disappear all of a sudden;be preternaturally swift;be elusive神...

appear and disappear all of a sudden;be preternaturally swift;be elusive：神出鬼沒

in all ages;at all times;since remote antiquity古往今來 | appear and disappear all of a sudden;be preternaturally swift;be elusive神出鬼沒 | be born today and die tomorrow;be shortlived朝生暮死