The paper elaborates the influence of irregular channel regime to the capability of flood discharge through taking irregular winding bend of the lower Yellow River as an example.

During the process of formation,development,disappearance and reappearance of malformed winding bend,the distortion and deformation is an important appearance in the evolution process of the bend.

The no load EMF waveform deriation ratio of the salient pole synchronous generator is one of its important technical data and depends mainly on the waveform of the no load air gapmagnetic field, which is seriously influenced by many complex factors and is difficult to calculate.

Discussion on teratogenic causes of the deformity found in cultured Acipenser schrencki Brandt;

Perioperative managements of hallux valgus deformity in the geriatric patients;

Post-operative deformity after posterior approach vertebral pedicle fixation in treatment of thorac-lumbar fracture;

Clinical significance of ultrasonography in screening fetus abnormality before birth;

Spiral CT scanning after IVU in diagnosis of pediatric congenital ureteral abnormality;

MATERIALS AND METHODS:The oral acute toxicity test,micronucleus test of bone marrow PCE cell and sperm shape abnormality test were carried out.