???????????????????

 ???????????????????????

?????????????2?????(??????????)????????????????????????

????+40?????????3?????? 3????????9W????

???????? 6*8*32=1536 ???6*8*9W=432W????

????+40 2??????? ???2?????? +40?????????510????

???????? 6*8*16+510*2 = 1788 ?????6*8*3W=144W????

????????2???????? ???????? ??1500??????? ??252???? ??288W????