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

2???95?98?????

3???????????

4???????

5???????

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

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

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

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