Yi dong she ji

Ben shu shou xian cong ren- ji- huan de jiao du chu fa lai chan shu yi dong ying yong de she ji, Bing jian li le yi dong ying yong she ji de ji ben yuan ze;Qi ci, Gen ju yi dong duan de qing jing, Yi dong she bei de te zheng, Yi ji chu mo de jiao hu fang shi, Zuo zhe zong jie le yi dong dao hang he yi dong kuang jia she ji de zhu yao xing shi, Bing ji chu le yi dong dao hang she ji de yuan ze he si lu.