three fold axis 三次轴
six fold axis 六次轴 ; 六重轴
two-fold axis 二重轴 ; 二次轴
six-fold axis 六次对称轴 ; 六次轴
n-fold axis 重轴
four-fold axis 四次对称轴
fold-axis slant 褶曲轴倾
Methods: to design nasolabial fold axis flap to local shift and repair upper lip defect because of tumour and wound.
方法：对于因肿瘤、创伤所至的上唇部缺损，设计鼻唇沟轴型皮瓣局部转移修复。
The image shows a eukaryotic voltage-dependent potassium channel viewed along the four-fold axis from the extracellular surface.
这张照片显示了真核生物细胞外表面四重轴向的电压依赖性钾离子通道。
The trend and plunge of linear features, such as the axis of a fold, describe the azimuth of the line and its deviation from horizontal.
线性特征中的走向及倾伏(诸如褶皱的轴)，描述了此线的方位角及其偏离水平面的情况。层态亦称产状。
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