September 21, 2012, Sifang Rolling Stock Research Institute of China North Vehicle Group Operation, Inspection and Repair of Cross - Braced to company training taught to explain in detail the wagon bogies and polymer materials improved artwork. Caozhu Ren expertise is deep and rich, is related professional senior experts and scholars elaborated to explain the content concise and accurate, focused, clear thinking, easy to understand, good pedagogues sequential to stimulate students' interest in learning.
    Caozhu Ren, full of energy, lectures passionate, have great appeal to attract the attention of the students. Caozhu Ren the introduction of new ideas, new concepts, new results from time to time according to the actual situation of the disciplines, give students thinking Lenovo enlighten the space, effective use of multimedia, with colorful pictures, tables, diagrams presented in the conference room big screen give students more visually knowledge show, received the expected results, so I related to students enjoyed benefits, more mastery of the specific details of the knowledge of the the truck bogie and polymer materials.