带式行星齿轮无级变速器实质上是一种可无级变速的封闭式差动轮系。
In essence the belt planetary gear continuously variable transmission is a planetary differential train the speed of which is adjustable.
闭式行星轮系是一种多功能的行星齿轮传动机构。
Closed planetary gear system is a multifunctional mechanism of planetary gear transmission.
闭式行星轮系是一种多功能的行星齿轮传动机构。
Closed planetary gear system is a multifunctional mechanism of planetary gear transmission.
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