Parallel projection of the affine coordinate system has a significant impact on computer graphics recognition, object's tracking or solid model reconstruction.
空间仿射坐标系的平行投影问题在计算机图形识别、跟踪目标及三维实体重建中具有重要意义。
Based on the screen coordinate theory of solid diagram of complementary color, a perspective projection diagram of space surface is drawn using floating horizontal line method.
利用求补色立体图屏幕坐标原理，采用浮动水平线法来绘出空间曲面的透视投影图形。
Middle school students would perceive the global-first topological invariance of the solid figure when they make the projection, and then the local property or components.
中学生在进行几何体射影时首先要把握几何体的大范围拓扑性质，然后才是物体的局部性质或组成部分。
Parallel projection of the affine coordinate system has a significant impact on computer graphics recognition, objects tracking or solid model reconstruction.
空间仿射坐标系的平行投影问题在计算机图形识别、跟踪目标及三维实体重建中具有重要意义。
Characteristics of cystic malignant tumors were as follows: the wall and septa of tumors were thick and irregular, a papillary projection or irregular solid component in cystic tumors could be seen.
囊性恶性肿瘤的特征是肿瘤壁和分隔厚且不规则，肿瘤内软组织成分较多。
Characteristics of cystic malignant tumors were as follows: the wall and septa of tumors were thick and irregular, a papillary projection or irregular solid component in cystic tumors could be seen.
囊性恶性肿瘤的特征是肿瘤壁和分隔厚且不规则，肿瘤内软组织成分较多。
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