differential pulley meaning in Chinese

差动滑车
差动滑轮

This mechanism is a set of differential linear transmission mechanism consists of two differential pulleys , different in size and co - axially fixed together , engaged to the cog belt between driving and driven wheels of the traditional synchronous belt mechanism
该机构是在传统的同步带机构的主、从动轮之间的齿形带上啮合一套由大小不同的两个同轴固联在一起的差动轮组成的差动线性传动机构。