论文部分内容阅读
9月18～19日全国科普日活动期间,中国机械工程学会和机械工业节能与资源利用中心共同在中国科学院奥运村科技园北京主场开展了
September 18 ~ 19 During the National Science Popularization Day, the China Mechanical Engineering Society and the Machinery Industry Energy Conservation and Resource Utilization Center jointly held the Beijing Olympic Games Science and Technology Parks Beijing Academy of Sciences