With the rapid development of food technology and packaging industry, many new types of packaging materials and packaging forms appear constantly. Among them, the expert thinks, edible green packaging
Beijingcity2013-2017cleanairactionplan"in2014theworkmeasuresrecentlyreleased,thetaskdecompositionofupto84,eachtotheimplementationofspecificunits,andsetthecompletiontime.Theproposed,Beijingcityin2014wi
