很多人都声称自己发明了望远镜，但是文献记载里只有汉斯·李·伯希申请了这个仪器的专利。
Many other people claim to have invented the telescope, but Hans Lipperhey is the only person documented to have applied for a patent for the device.
探讨李鼎教授针灸经典文献研究方面的特色。
This paper discusses professor Li Dings research characteristics of acupuncture classics literature.
根据古文献记述，李兰秤漏很可能是使用弹簧联结权器和秤钩，以达到平均流速稳定的目的。
According to the record of ancient documents, this paper gives the possible structure of li Lan's steelyard clepsydra, and demonstrates the principle for the stabilization of average flow velocity.
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