å½æ 0#æ´æ²¹ä¸å¨å¤§çº¦å©æ¶¦æ¯400å
å·¦å³ã
0å·æ´æ²¹çå¯åº¦å¨20°Cæ å温度ä¸ä¸è¬æ¯0.8400--0.8600g/cmâä¹é´ã
ä½åºå®æ´æ²¹çå家大å¤é½è¯´èªå·±åºå®çæ¯0å·å½æ æ´æ²¹ï¼å¯åº¦0.835ã
以å¯åº¦0.835æ¥è®¡ç®ãæ¯åæ´æ²¹è´¨é为835gãä¸å¨ä¸º1000000gï¼1000000g/835g=1197.6å å¦æ碰å°ç
æ´æ²¹å¯åº¦ä¸æ¯0.835ï¼é£å°±å¦å¤æç
§ä¸é¢æ¯å¼å计ç®ä¸ä¸ã ä¾å¦æ´æ²¹å¯åº¦æ¯0.86ï¼ä¸å¨æ´æ²¹å°±æ¯ï¼ 1000000g/860g=1163åã