2. The application of the double
gyration device on LAMOST fiber positioning unit is introduced.
介绍了双回转机构在LAMOST光纤定位单元中的应用。
3. Two homogenous rigid bodies with identical shapes, but made of different materials (different densities), have the same radius of
gyration.
对于几何形状相同而材料不同(密度不同)的均质刚体,其回转半径是相同的。