From a statistical point of view, the vibration of 70 ~ 80% is due to the cause of the rotor mass distribution.
从统计学来看，振动的70 ~ 80%是由于转子质量分布的原因引起的。
2
The influences of chemistry on the mass, morphology, components and darkness of the phosphating film were discussed by statistical experiment.
通过统计试验讨论了化学成分对磷化膜质量、表面形貌、组分的影响及膜层质量对其暗度的影响。
3
Both of the observed radial velocity and separation being projective values, in order to determine the mass of binary galaxies the average projection factor may be derived by a statistical method.