应该是餐饮吧
http://www.baidu.com/s?ie=gb2312&bs=%CA%B2%C3%B4%CA%C7%B2%CF%D2%F2&sr=&z=&wd=%B2%CF%D2%F2&ct=0&cl=3&f=8
应该叫蚕因丝吧~