Coil the fibre into a helix.将纤维卷绕成螺旋形。Normal, double - helix DNA is spiral, like a loosely coiled spring.正常的双螺旋DNA是螺旋形的, 像一根松松地卷曲的弹簧.The helix makes a complete turn every 3.6 residues.每个3.6个残基,螺旋正好转一圈....
Purpose To recognize the value of double helix CT in diagnosis of Chronic otitis mastoidea.目的:确定慢性化脓性中耳乳突炎的双螺旋CT扫描诊断价值.In order to represent Archimedes helix with control polygon, we construct Bernstein - like basis.为了用控...