With the rapid development of industry, especially vehicle industry, increasing requirements are demanded for CVT.Accordingly, the varieties and styles of CVT need to be studied further.

• 随着工业尤其是汽车行业技术的不断发展，对无级变速装置的要求越来越高，因此我们对无级变速传动的种类和形式需要进行深入研究。