纹片粗硬，隐以墨漆，独成一宗釉色，亦肥厚，有粉青、月白、淡牙色数种。

Coarse grain tablets, hidden in order to ink & paint alone into a glaze, but also hypertrophy, there is powder blue, pale blue, and light-colored several teeth.

youdao

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.

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