????????é¢?ï¼?é«???æ¸?ç­?让ä???正常è¿???

??????500米以ä¸?????????è·??¼æ??段æ?ç­?ä½?ä¸?ä¸????正常è¿????»æ???ç»?äº??³ã????è·??é£?æ²?è¾?大ï?å¾?å¤?æ²???ä¼??¹è???è·?????ï¼?????线路ä¸?稳å???æ¸?ç­?å°±æ???????ä¸???污å????åº?渣ç??¤ç??ä¸?项工ä½???æ¸?ç­??ºä?ä¸?æ¯?10ç±³ï??ºæ?æ¸?ç­?å·¥å?ºå·¥?¿å?¶å????å°±ä?ä¸?è¾¾ä?声ç?æ´???ç¡?????令â??正常è¿???ï¼?æ¯?ä¸?ä¸??ä¸?人å????次è???ç¡??ä¸?ä¸??ºæ?è½þ>??设å?ä½?ä¸????°ï?å¼?å§?ä¸?ä¸?项工ä½???

??????正常è¿????????????¢å???¸è¥¿å®?å·¥å?¡æ?ºæ?段æ?ç­?äº?è½þB?´è??å·¥ç???£å¤´ç¦???è¿????¿æ???¨é?æµ·æ??缺氧???ä¸??½å·¥ä½?ä¸?ï¼?说ä?ä¸??¥å??´ç??è¯??½è???ä¸????£æ????°æ?¹ï?磨ç?ºå?ºç????é«?????使ç?¨æ??é¢?ç¹???ä¸?ä¸????å®?ä¸?ä»?代表??ä½?ä¸?ä¸?·¥åº???å·¥è?ºæ?常ï???»¥?¾å???è¿???ï¼?ä¹?代表??ä¸?ç§???å¹´å?ä¸??¥ç?¸ä?磨å???ºç??é»?å¥???ï¼?????å³ ??å°?æ¶?ï¼?