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

2???95???

3????????

4??????

5?????????

???????????“???”?????????,????,??“???”??????“?????????”??????????????“??”,??????????????,????200??????,????30????,??,??????????????

“???????”?????“?????”??????????????(???????)?(????????1949??,?????????15??????)??,??????“?????????????”???

“??????????”??,??“?????”,??????????????????,??????????,?????“?????????????”??????????,“???”??,?????,??,???????,????????????????,????,????????????????????????,????

??,????,“??”???????????????????“???”?????????,??5????“?????????????”?????,??????????????“?????”,??“??”????????,??????,???

???????????,???????????????????????????????????????????????????????????????????????????,?????,?????????????????????????????????????????,?????????????????(250~800?????)????(????????30~60??????????????,???????80?),???

????,????????????“???????????”??,????????????????????????????????,???

????????,??,???????????????,????????????????????????……???????????????????????????,??“???????????????”?????????????,?????,???????????????????,?????????????,?????30°C?

???????:???

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