Dong用三维建模程序打造他的概念车，不过学生们通常也制作等大模型。
Tran rendered his concept car using 3-D modeling programs, but students often build scale prototypes as well.
四元数可能把三维旋转的概念推广到四维(请参阅参考资料，其中有四元数的参考资料的链接)。
Quaternions make it possible to extend the concept of rotation in three dimensions to four dimensions (see Resources for links to quaternion references).
此举并非冲着环保概念，而是设计师本人以三维设计来表现他对可口可乐的钟爱！
It wasn't an attempt to create something eco-friendly but just expression of designer's love to this drink created in 3 dimensions!
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