The dynamics of bodies moving relative to gases, especially the interaction of moving objects with the atmosphere.
空气动力学相对于气体的物体移动，特别是移动物体与大气相互作用的动力学
Formation of distinct organs or structures through the interaction of adjacent tissues.
个体分离通过相邻的组织间的相互作用，产生新的器官或组织结构
There should be a lot more interaction between the social services and local doctors.
社会公益服务机构和当地医生应该加强协作。
