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

2??????200??

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

4?????????

5???????????

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??????????????????????PVC?????????????????????????,???????????????????????????(????????????)??????????,????????2009??,?????????????????,????,?????“????,????????????”,???????????????????????,“??,????10????????????”?

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

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??11????,??????????:“??,???????????”

????,?600??,??????80-90????????????,???????????????10-15???????????????,???30-40???????????????,????3??????????????100?????

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“‘?’???????????????????,???????????????????????,????????????????????????”?????????????????????????

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