????:1????????????:???????????

2???92?

3???499???

4????????95

5???????

?????????6????????????27?????????? ????????????????,??,????????(ISO/TC 81)??,????

??????????????????,??????????????“??”???(FAO)?????????????,?????????????????????30%~40%????????????????????????????????,??????????????????????????,?????????

ISO/TC 81??????????????,???,???????

????:??????????????