Hereinto, the assembly process simulation technique was based on digital mock-up, and its application features and existing difficulties in airplane parts assembly were explained. 其中，裝配過程模擬技術是以數字樣機為基礎的，並說明了其在飛機部段對接中的應用特點和存在的難點。
Focusing on the fractionating tower of the Delayed Coke Unit,the article introduces amodel-setup method of simulation software in the PetrochemicaI process. 本文以延遲焦化裝置的分餾塔系統作為研究對象，介紹了一種石油化工過程模擬軟體的建模方法。
