ããé¦å
è¦çå®ä¸¤ä¸ªé®é¢ï¼1ãååå¾å°ççµåç大å°ï¼2ãååè¾åºç声åç大å°ã
ãã1ãå 为ååé»æç¸åï¼æ以两个åååæ¶æ¥ä¸ï¼ä¸å个ååé»æå°±æ2åä¹å·®ï¼å¹¶èä¼å°ä¸åï¼å°è·å¾æ´å¤§ççµåçï¼ä¸²èåé»æå åï¼ä¼åå°è·å¾ççµåçï¼å½ç¶è¿æä¸ç§æ´å¤æçæ¹æ³ï¼ç¨ååå¨æé»æåå¾ä¸æ ·ï¼å°±ä¼è·å¾ç¸åçåçã
ãã2ãå¦æçµåçç¸çï¼äº§çç声é³é³é大å°å°±åå³äºååççµæ度ï¼æçï¼ï¼çµæ度é«çåå声é³æ´åãå¦æçµåçä¸çï¼è¾åºå£°åç=çµåç X ååæçï¼éè¦è®¡ç®åæè½æ¯è¾å¤§å°ã
ãã3ãä¸ååçæ 称åçï¼50Wæ100Wï¼æ²¡æä»»ä½å
³ç³»ãæ 称åçåªæ¯åè¯ä½ å®è½æ¿åï¼ä¸ç§æ¯ï¼çåçã
温馨提示:答案为网友推荐,仅供参考