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explain the differences in the working of a heat pump when the out-door temperature changes contrast the heating and the cooling modes of heat pumps describe heat pumps, their use, and {actors affecting their use advocate the more widespread use of heat pumps
±0.001pu ±0.002pu ±0.003pu ±0.005pu
PU=U/P PU=P/U PU=UP PU=(U+P)/(U-P)
Pu=Pm-9dB Pu=Pm+9dB Pu=Pm+8.686dB Pu=Pm-8.686dB
Do not make exaggerated claims about the products you are trying to promote. Focus your advertising campaign on vague analogies and veiled implications instead of on facts. Do not use facts in your advertising that will strain the prospective client's ability' to believe. Do not assume in your advertising that the prospective clients know even the most elementary scientific principles.
Pu与
U互为同位素 Pu与
Pu互为同素异形体 Pu与U具有相同的化学性质 Pu与Pu具有相同的最外层电子数
PA+pC+pUpCpApGpU PApG+pUpC+pApGpU 2pA+2pG+2pU+pC PApGpUpCpA+pG+pU PApGpUpCpApG+pU
Pu与
U.互为同位素 Pu与
Pu互为同素异形体 Pu与U.化学性质完全相同 
Pu与
Pu最外层电子数相同
the use of a poor quality oil the deterioration of its properties the formation of deposits the reduction in heat transfer ability
explain the differences in the working of a heat pump when the outdoor temperature changes contrast the heating and the cooling modes of heat pumps describe heat pumps, their use, and factors affecting their use advocate the more widespread use of heat pumps
use to make be used to making use to making be used to make
PA+pG+pUpCpApGpU PApG+pUpC+pApGpU 2pA+2pG+2pU+pC PApGpUpCpA+pG+pU PApGpUpCpApG+pU
explain the differences in the working of a heat pump when the outdoor temperature changes contrast the heating and the cooling modes of heat pumps describe heat pumps, their use, and factors affecting their use advocate the more widespread use of heat pumps
Pu与
U互为同位素
Pu与
Pu互为同素异形体
Pu与
U具有完全相同的化学性质
Pu与
Pu具有相同的最外层电子数
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