ÌâÄ¿ÄÚÈÝ
Èçͼ¼×ÊÇijÐͺŵĵçÈȯ£¬Í¼ÒÒÊÇÆäµç·½á¹¹¼òͼ£¬Í¨¹ý¿ØÖƵµÎ»¿ª¹ØSa¡¢Sb¿ÉÒÔ»ñµÃËĵµ¼ÓÈȹ¦ÂÊ£¬ÒÑÖªµç×èË¿R1µÄ×èֵΪ44¦¸£¬²»¼ÆζȶÔR1¡¢R2×èÖµµÄÓ°Ïì¡£
£¨1£©µ±¿ª¹ØSb¶Ï¿ª£¬SaÓë´¥µã1½Óͨʱ£¬Çóͨ¹ý¿ª¹ØSaµÄµçÁ÷£»
£¨2£©µ±¿ª¹ØSb¶Ï¿ª£¬SaÓë´¥µã2½Óͨʱ£¬µçÈȯ¶Ô1kgË®¼ÓÈÈ7min£¬Ë®ÎÂÉý¸ß30¡æ£¬ÇóµçÈÈË¿R2µÄ×èÖµ¡£ÒÑÖªÏûºÄµÄµçÄÜÓÐ75%±»Ë®ÎüÊÕ£¬Ë®µÄ±ÈÈÈÈÝΪ4.2¡Á103J/£¨k•¡æ£©
£¨3£©Èô¿ª¹ØSb±ÕºÏʱ£¬µçÈȯµÄµç¹¦ÂÊ×ܱÈSb¶Ï¿ªÊ±´ó£¬Çë±È½ÏR1¡¢R2×èÖµµÄ´óС¹Øϵ£¬²¢Ð´³ö·ÖÎö¹ý³Ì¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿