Wheelsmiths stick to their rules to measure the size of the world----"Mozi-Tianzhi 1"Saw, a square of wood, carving exquisite workmanship; ruler, an inch of soil, construction is superb. Invention and creation rub the spark of wisdom, craftsman's ingenuity , Inherited for thousands of years, it has achieved the civilization and development of mankind. In ancient times, there was a hundred craftsman saint Zu Luban, and today there is a hundred certificate king Jiang Changan. Qualification certificates for civil engineering, water conservancy construction, machinery, geology and mining, etc. One hundred copies. Others travel with a space system, while Jiang Changan is reborn with a certificate. The ancient Dasong Dynasty with backward technology and low productivity is her home field. Transform farm tools to improve farmers' farming efficiency; make small inventions to improve the family But if you want to make a fortune, you have to take the imperial examination to pave the way. A hundred certificates are enough to build infrastructure in this backward ancient time, so that you can get the top spot in the construction industry~ the position of Shangshu of the Ministry of Industry, until the Ministry of Industry is rolled into The first of the six parts. Only in this way can we repay the loving grandfather, enlightened parents, and wise teachers... Li Shushen, the son of a real princess, is a madman: My childhood friend, you seem to have forgotten that I am still there! Let me promise you, Mrs. Shoufu's order is worthy of your favor. Jiang Chang'an: It's possible, the road is long and the road is long, we are in the same boat through thick and thin, we share weal and woe, measure this family with rules, this court, this world's radius, grow old together , full of children and grandchildren.