<{p}><{span style="font-size: 1em;"}>A decrease in the mass of energy equals a decrease in the capacity of energy to do work.<{/span}>能量的质量降低了等同于能量的做功能力降低了<{span style="font-size: 1em;"}>能量的质量降低了等同于能量的做功能力降低了<{/span}><{br/}><{/p}> <{p}><{br/}><{/p}>