EntityQ617933· pop 17· linked from 254 articlesMa JunSign in to save3rd century Chinese mechanical engineerConnectionsHan dynastyEntitycarEntitytheatreEntityQin Shi HuangEntityInternational Standard Book NumberEntitysilkEntitycompassEntityHenanEntityShaanxiEntityagricultural irrigationEntitypinyinEntitymagnetismEntitysimplified Chinese charactersEntityLuoyangCityloomEntitytorqueEntityThree KingdomsEntityHero of AlexandriaEntitytraditional Chinese charactersEntityeunuchEntityCategoriesCao Wei government officialsChinese inventorsChinese mechanical engineersEngineers from ShaanxiHydraulic engineersNo local image but image on WikidataPoliticians from XianyangScientists from Shaanxi