The period from the Qin to the early Eastern Han dynasty saw a transition in Chinese agricultural production from farming with hoes and spades into farming with ploughs.
秦至东汉中期，我国农业生产仍处于由锄、锸耕向犁耕过渡时期。
It originated from the Warring states, developed in Qin Dynasty and matured in the early part of west Han Dynasty.
这种思想初步形成于战国时期，经过秦代这一过渡性阶段，在西汉前期完全形成。
Tang dynasty saw ideological emancipation and resuscitation of the various schools of thought put forward by the exponents during the period from pre-Qin times to the early years of the Han Dynasty.
唐代思想解放，诸子学说重兴，沉寂多年的墨学亦受到重视，唐中期韩愈、柳宗元等都对墨学做过研究。
Tang dynasty saw ideological emancipation and resuscitation of the various schools of thought put forward by the exponents during the period from pre-Qin times to the early years of the Han Dynasty.
唐代思想解放，诸子学说重兴，沉寂多年的墨学亦受到重视，唐中期韩愈、柳宗元等都对墨学做过研究。
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