丁一卯二

Explanation: D: Tong, "nail" here means the tenon; d: utensils then assembled in the hole. Dingmao joint position, a trace is not bad. Described as indeed, secure. 　　Usage: Joint type; as attributive; mean really 　　Source: Yuan Anonymous "holds makeup box" third fold: "To say that a D 1 d 2, must not you sent three wrong 4." 　　Examples: Dear husband said, ~ The Road has named Wang donor, homes at the temple to pick it up, you still leave him, and really self hidden. ★ Ming Ling Meng-chu, "half an hour of surprises" Volume 16 Thesaurus:  Ding Kakuji, dingshiding, maoshimao, be conscientious and meticulous