The circular symmetric point and the apalanatic point of spherical lens have one same expression, however the two kinds conjugate point are belong to difference category.
圆周的对称点与球透镜的齐明点虽然有一个相同的表达式，但这两类不同范畴的共轭点有着内在的差异，分析这种差异，有利于更好地理解它们。
With the precision degree of its lifting platform as a focal point, the paper also introduces the related mechanical models and the rigidity design of the lifting platform using conjugate beam method.
着重分析了升降架的设计精度要求，介绍了其力学模型及采用共轭梁法对升降架的刚度设计。
At last, the precise point correspondences on the correspondence curves between the different images are implemented by using the conjugate gradient based on the initial matching.
最后在图像曲线初始匹配的基础上，采用共轭梯度法对图像曲线进行精确匹配。
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