“双螺旋”的英语？

正常的双螺旋DNA是螺旋形的, 像一根松松地卷曲的弹簧.Normal, double - helix DNA is spiral, like a loosely coiled spring.这就是双螺旋.This is the double helix.由此产生的双螺旋结构减少了摩擦,并允许更快, 更容易系带.The resulting double helix reduces friction and allows faster, e...