no deviation
4.We checked this mutation in Yorkshire, Yorkshire×Laiwu, Duroc and Laiwu pigs and found that the genotype frequency of Del(A)/ Del(A) is the highest in Laiwu pigs: all Laiwu pigs that were checked were homologous Del(A)/ Del(A). No deviation from Hardy-Weinberg equilibrium was detected in Yorkshire, Duroc and Yorkshire×Laiwu pigs.
6.On the basis of these theories, the no-loading EMF of powerformer is analyzed and the no-loading waveform deviation factor is taken out, in the conditions of considering the influence of damping winding and not considering it.

