《太平广记·卷二百三十四·食（能》
之后，围着事先备好的平台盘仔细看看，见有不平的地方就用木契填上，将它整平。
遂四面看台盘，有不平处，以一楔填之，后其平正。
Afterwards, I carefully looked around the prepared platform, and wherever I found uneven spots, I filled them with wooden wedges to level it.