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5?????????

??8??8???????????? (?????????? ???)???8??25?????,???????112??MX????????160???MX??200???F??????????????3??,?????

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??????“????”??????????,???????4.5???????????????????????????(?,???)??????,???????????????????????,?????????????????10???????

?,??1??,?????????????7000?????????“?????????????????????????????????4?????????”

????????,???(UN3171),???“??????”????,??“40????????????????????????”???????????????????,??????,?????????????????“????????+????”,????????????????????????????????????????????????“???????”??,??????????????;??????????

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