Isbn: 9787504658425 - 科普大家--从竹蜻蜓到直升机——旋翼发展之路 9787504658425 张德和,邱学军 中国科学技术出版社 (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2011 Jun Pages: 196 in Publisher: Science and Technology Publishing House from bamboo dragonfly helicopter: Rotor development path. a book divided into exploration chapter development chapter. use chapter and the next chapter four chapters. Development path to the helicopter: Rotor from bamboo dragonfly helicopter main line. and to explore the origins of the helicopter on the helicopter growth difficult process to show the style of contemporary helicopter. depicts the use.…