词汇	synodical periods
释义	synodical periods synodical period；天文学会合周期
随便看	degree of fractionation degree of fragmentation degree of free degreeof freedom degree of freedom Degree-of-freedom degree of freedom analysis degree of freedomdf degree of freedomd.f degree of freedom, DF degree of freedom in system degree of freedom of a gyro degree of freedom of a kinematic chain Degree of freedom of a kinematic pair degree of freedom of a mechanism degree of freedom of kinematic chain Degree of freedom of kinematic pair Degree of freedom of link Degree of freedom of mechanism degree of freedom of motion degree of freedom of robot degree of freedom on a node basis degree of freedom reduction degree of frequency drops degree of frost