based on fieldwork in Fujian based on the fieldwork in Xiang county based on cases in Yunnan based on network effect based on social network analysis Reflections on fieldwork in morocc based on first principles based on the case of Fuzhou Fujian 大陆台商社会适应与社会认同研究:基于福建的田野调查:based on fieldwork in Fujian based on the perspective in Xinjiang