1度=____kW.h=_______J
1度=____kW.h=_______J
单位换算:7.2度=_______kW.h=________W.s=_______J
一热泵空调其制冷系数为3.2,制热系数为2.6.空气消耗1KW电,夏天的制冷量为____KW?冬天的制热量为____KW
1KJ/h=?kcal/h
H*H-2H-12=0
1 度= kw.h,1kw.h= j.g=
=SUM(COUNTIF(date!H:H,">"&{70,80})*{1,-1})
=SUM(COUNTIF(date!H:H,">"&{70,80})*{1,-1}),
(2+h+x)/2(2-h-x) +k+(2+h-x)/2(2-h+x)+k=1
在公式V=πh^2(R-(1/3)h)中,h≠0,用V,h表示R
若DS=2000H SS=1A00H SI=0062H Bx=0300H SP=6362H DS:[0362H]=0BB
若DS=2000H SS=1A00H SI=0062H BX=0300H SP=6362H DS:[0362H]=088