如题所述
ä¸å¯è½é£
å 为使ç¨ææ°çåºæ¥çæ°æ¯ç©ºæ°ã
空æ°ï¼å®ä¸»è¦ç± 78%çæ°®æ°ã21%æ°§æ°ã0.94%çç¨ææ°ä½ï¼æ°¦ãæ°ãæ°©ãæ°ªãæ°ï¼ï¼0.03%çäºæ°§å碳ï¼0.03%çå ¶ä»ç©è´¨ï¼å¦æ°´è¸æ°ãæè´¨çï¼ç»æçæ··åç©ãæ ¹æ¬å°±é£ä¸èµ·æ¥ã
è½é£çæ°ä½åºè¯¥æ¯æ°¢æ°ã
æ°¢æ°æ¯ä¸çä¸å·²ç¥çæè½»çæ°ä½ãå®çå¯åº¦é常å°ï¼åªæ空æ°ç1/14ï¼å³å¨æ å大æ°å,0âä¸,æ°¢æ°çå¯åº¦ä¸º0.0899g/Lã
å 为使ç¨ææ°çåºæ¥çæ°æ¯ç©ºæ°ã
空æ°ï¼å®ä¸»è¦ç± 78%çæ°®æ°ã21%æ°§æ°ã0.94%çç¨ææ°ä½ï¼æ°¦ãæ°ãæ°©ãæ°ªãæ°ï¼ï¼0.03%çäºæ°§å碳ï¼0.03%çå ¶ä»ç©è´¨ï¼å¦æ°´è¸æ°ãæè´¨çï¼ç»æçæ··åç©ãæ ¹æ¬å°±é£ä¸èµ·æ¥ã
è½é£çæ°ä½åºè¯¥æ¯æ°¢æ°ã
æ°¢æ°æ¯ä¸çä¸å·²ç¥çæè½»çæ°ä½ãå®çå¯åº¦é常å°ï¼åªæ空æ°ç1/14ï¼å³å¨æ å大æ°å,0âä¸,æ°¢æ°çå¯åº¦ä¸º0.0899g/Lã
温馨提示:答案为网友推荐,仅供参考