由于不了解魏晋的品式制度及其对后来的影响，治史者难以解释隋代的输籍定样，不知输籍为何物，更不懂样的意思。
Because historians do not understand the " Pinshi " system of the Wei and the Jin dynasties and its coming influence , they can neither explain " Shuji-Ding-Yang " of the Sui dynasty nor understand their meanings .
输籍定样