between planets meaning in Chinese

星际归途

The convenient length unit for measuring distances between planets is the astronomical unit
在天文学上，太阳系内天体的距离惯用
With the trait of power split and movable axis as well as application of inner meshed gear , planetary gear transmission has many advantages compared with general fixed axis gear transmission system . however , these advantages can not be realized without the balance of the load between planet gears
行星齿轮传动具有功率分流和动轴线的运动特点，以及内啮合的合理运用，使其相对于普通定轴线齿轮传动在技术和经济上具有很多优点，但如果行星轮间载荷不均衡，则这种优点就难以实现。