牛顿第二运动定律 / 斜背随身背包

https://1.bp.blogspot.com/-hNObLPA0eS8/XTCZyPzykNI/AAAAAAAARKg/LUurHgtIsGUSHWkB5TQZ3y7vsA5Q_lqnwCK4BGAYYCw/s640/DSC01701.jpg 牛顿第二运动定律 以前老板ㄅ开始画画前 曾经就读过物理系，但是成绩太烂了 决定自己休学，改念画图的科系 所以后来才有了鹿皮 根据以前所学，牛顿第二运动定律就是： 物体所受到的外力等于物体的质量与加速度的乘积 这是念过物理系的老板ㄅ，能讲出最艰深的科学了ＸＤ 非常的逊 包包尺寸：宽30cm x 高24cm x 底部厚4cm 背带为可调式，最短68cm/最长135cm 背包本体材质为棉，背带为人造纤维 https://4.bp.blogspot.com/-bzncEZ1xIIo/XTHSZbBbUmI/AAAAAAAARLs/vMF6nX3H9uI6IIFxksyTrYaiF_vmRMHogCK4BGAYYCw/s640/DSC01688.jpg 我们选用了很像笔记簿的条纹布料 上面绣着细细的数学公式 就像我们平时随笔画画那样的感觉～ https://3.bp.blogspot.com/-TaRYyhAN1oA/XTHSZCOjDNI/AAAAAAAARLk/ZZA6YFd49jsUcTfPntHgBLSxQht-ffPewCK4BGAYYCw/s640/DSC01687.jpg 袋口使用转锁固定，可以防止包包里的东西跑出来 https://4.bp.blogspot.com/-mPpwMTRKpV0/XTHSY-1VjoI/AAAAAAAARLU/JYAwmN2g-iQXXnZFW6kETl6btwDPb26UwCK4BGAYYCw/s640/DSC01686.jpg https://2.bp.blogspot.com/-OoVbfQ_zvis/XTHSZLQmZZI/AAAAAAAARLo/QlZlOcksFt4omT3wrmjqgKt4ulKq8jzjgCK4BGAYYCw/s640/DSC01684.jpg https://4.bp.blogspot.com/-yNoXtX_sdMg/XTHSPTcXSFI/AAAAAAAARLM/P5Tc1Wuem_8rx26FIr4WFTlemKL3JrkqwCK4BGAYYCw/s640/DSC01703.jpg https://2.bp.blogspot.com/-C4sFoIjDiY8/XTHSNFuaW2I/AAAAAAAARLE/XnvmWtNU9CwFXY39R5WwXJ0Ap3Gg-Sd3ACK4BGAYYCw/s640/DSC01700-2.jpg https://1.bp.blogspot.com/-QlVfyzYzqRk/XTHSLI5hfzI/AAAAAAAARK8/Ga_72HwZhJYgzWZVkeatt42EiYGSY8wpQCK4BGAYYCw/s640/DSC01705.jpg https://2.bp.blogspot.com/-3GmClnn7FgQ/XTHTQ8UP7AI/AAAAAAAARMM/Aoy3uUEeQ7EYJvjPbAZlSZiuY6csqgCLgCK4BGAYYCw/s640/DSC01683.jpg https://4.bp.blogspot.com/-NxqbqMknsCo/XTHTQMfU2WI/AAAAAAAARME/9CL__ew1hMYR1j8Jg-6WJ7xsDGb5HZVGgCK4BGAYYCw/s640/DSC01682.jpg https://3.bp.blogspot.com/-3-qwNYKa_sA/XTHTfJinj5I/AAAAAAAARMU/AbUUStVBUGkSxt8WQyRhm7TkUhpi7pvkQCK4BGAYYCw/s640/DSC01689.jpg 内层有个小袋，可以收纳钥匙这类很难找的东西！ 背包的尺寸为：30 x 24厘米 / 底厚4厘米 背带长度可以调整 背包本体材质为棉，背带为人造纤维 https://2.bp.blogspot.com/-CZUfzIQlz8U/XTCVkYICX_I/AAAAAAAARJA/01QFGaVUC_Ar29xmLUeeAVUHQFAcQaCGgCK4BGAYYCw/s640/DSC01681.jpg https://2.bp.blogspot.com/-wswbwBg_K6s/XTCVkzTYbiI/AAAAAAAARJo/hTE-dIEMkagn6etZeOJ8aJT21ZUp3IeCACK4BGAYYCw/s640/DSC01680.jpg https://3.bp.blogspot.com/-HKpM_u3dPio/XTCVkfALIeI/AAAAAAAARJU/XgFc18MSkmsLSG5s5MpCZu8C-818lZLKgCK4BGAYYCw/s640/DSC01678.jpg https://4.bp.blogspot.com/-36VmAqL6JYs/XTCVhXJY3nI/AAAAAAAARIU/uQv6irjAoM8tzAqI72vBvfcBLV_nFCI_gCK4BGAYYCw/s640/DSC01677.jpg https://1.bp.blogspot.com/-ZIkA6phcErk/XTCVg4iLFYI/AAAAAAAARIM/4WBHnq9srgEsWE_-1MUub01Ro7z9fH4ewCK4BGAYYCw/s640/DSC01675.jpg https://1.bp.blogspot.com/-YwsoxpDDYh4/XTCVXWEZ4WI/AAAAAAAARHk/Pfex1vSu7NsrvqqrbtGJAwQhaQLDGncqACK4BGAYYCw/s640/DSC01674.jpg https://1.bp.blogspot.com/-KP3Khw95MZM/XTCVlo7gGzI/AAAAAAAARJ4/ai0lvo4VlVwcxEPkpXQow9Zg5HYtVNe7QCK4BGAYYCw/s640/DSC01672.jpg https://1.bp.blogspot.com/-oYT8sJJ0QiY/XTCVk5PXIWI/AAAAAAAARJw/vIjm3tJtdrkzcZtR7WgW4Ou9BevdRmM1ACK4BGAYYCw/s640/DSC01671.jpg https://3.bp.blogspot.com/-EwW9XKpjkc8/XTCVllwmUUI/AAAAAAAARJ0/N5T8IyHR8Eg5sylbxfjTPCPAc4FyYuH_QCK4BGAYYCw/s640/DSC01668.jpg https://3.bp.blogspot.com/-p0X7XTdjyJI/XTCVfvQKj3I/AAAAAAAARH8/fzEVaNwiYjEoBGE03lKZ1IdeVx0Mu_LFQCK4BGAYYCw/s640/DSC01667.jpg https://2.bp.blogspot.com/-3NSGJ6ru0Jc/XTCVkXVqtNI/AAAAAAAARJc/4dPvTlfX1L0Z8mhjcCCGP1nGomdACCPDACK4BGAYYCw/s640/DSC01666.jpg https://1.bp.blogspot.com/-kgNlIwhBHGQ/XTCVfhaAR5I/AAAAAAAARH4/EIrKFvUNrA8XvsendrdCYHY14psAecCdACK4BGAYYCw/s640/DSC01665.jpg https://3.bp.blogspot.com/-aA8LDml773w/XTCVPh6G-iI/AAAAAAAARHM/vflvChjsU80MFHiE72QU_eOZSer6h2N7ACK4BGAYYCw/s640/DSC01664.jpg https://3.bp.blogspot.com/-nrckZ5DiTdQ/XTCVkiHKzfI/AAAAAAAARJk/BSGyi3dxf4Y5asbWUJqkr5yqTKMnmNO-wCK4BGAYYCw/s640/DSC01663.jpg https://1.bp.blogspot.com/-AteyDtbWUzQ/XTCVfEGeeyI/AAAAAAAARHs/f6MTi1rCnkoYVROm2HRES___TviX9oTmwCK4BGAYYCw/s640/DSC01662.jpg https://3.bp.blogspot.com/-c1PUeHSjems/XTCVTl2q81I/AAAAAAAARHc/9lwIgpGeCOQp07aFydEnSFvrycKzCBkqQCK4BGAYYCw/s640/DSC01661.jpg https://1.bp.blogspot.com/-dhny01ya8OU/XTCVjsIMlaI/AAAAAAAARIw/dGQoz4xd8CU4U4T3AaxsTVL2nUrVkmZowCK4BGAYYCw/s640/DSC01660.jpg https://4.bp.blogspot.com/-c_OO9Bd7Dgo/XTCVkc18S_I/AAAAAAAARJM/CZJ9RKyp3lIFRdOrbK-AjYplOqxVzLnEACK4BGAYYCw/s640/DSC01659.jpg https://1.bp.blogspot.com/-LWizPxGnYH4/XTCVjAmOToI/AAAAAAAARIk/ZliZrYy7YpEHsFRdthBlPgW8TAboqQXkQCK4BGAYYCw/s640/DSC01658.jpg https://3.bp.blogspot.com/-PPaVpWNaO-A/XTCVSlqmlOI/AAAAAAAARHU/7EOipiNYeZUEZpBLxzRgdsL7838TtAqEACK4BGAYYCw/s640/DSC01657.jpg https://3.bp.blogspot.com/-77CZkXt_YeE/XTCVg-IhC1I/AAAAAAAARII/hAnkWP8egvcVsjJcVbwgiCrxOmUmiFDPwCK4BGAYYCw/s640/DSC01655.jpg https://3.bp.blogspot.com/-eR-oLv_eUc4/XTCVjOng4YI/AAAAAAAARIo/TVHngc4miA8HltkAIKQXL6nUVBy6dnqjwCK4BGAYYCw/s640/DSC01654.jpg