n.副法线，仲法线，次法线...

binormal的音标：binormal的英式发音音标为：[baɪ'nɔ:ml]binormal的美式发音音标为：[baɪ'nɔml]...

An application programmer must supply a tangent, binormal, and normal at each vertex.程序员必须提供每个顶点的切线 、 副法线和法线....