如题
[url]http://cache.lego.com/r/www/r/technic/-/media/Franchises/TECHNIC/Products/BI/B%20Models/42009_B_Model_Book_2.d.pdf
[url]http://cache.lego.com/r/www/r/technic/-/media/Franchises/TECHNIC/Products/BI/B%20Models/42009_B_Model_Book_4.d.pdf
[url]http://cache.lego.com/r/www/r/technic/-/media/Franchises/TECHNIC/Products/BI/B%20Models/42009_B_Model_Book_5.d.pdf