A、<span style="font-size: 10.5pt; font-family: 宋体;">能耗减少的趋势增大</span>
B、<span style="font-size: 10.5pt; font-family: 宋体;">传热温差增大</span>
C、<span style="font-size: 10.5pt; font-family: 宋体;">生产强度降低</span>
D、<span style="font-size: 10.5pt; font-family: 宋体;">操作费用减少</span>
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