1. The abduction mapping method was introduced to deduce the transformation relation between the non-unbendable surface and the flat surface. 利用微分几何中的诱导映射理论求得非可展曲面到平面域内的变换关系。
2. Pine, bamboo and plum are called the three friends in cold winter. They are planted beside tombs of national heros as a sign of unbendable loyalty to the country and people. 松、竹、梅被称为岁寒三友，它们被种植在民族英雄的坟墓旁，作为他们对国家和人民坚定不移的忠诚的象征。
3. A mapping transformation method was put forward to accurately determinate workpiece dimension of boxshaped drawing parts with non-unbendable features in differential geometry. 提出了一种映射变换方法：在分析传统拉深件毛坯尺寸计算方法的基础上，建立异型盒形件的毛坯近似展开的计算模型。
英英解释
adj.
1. marked by firm determination or resolution; not shakable
