The energy-saving results of these units can be further improved by widening the regulating range of the extraction pressure and by using tow-stage heating of district-heating return water.
扩大供热抽汽压力调节范围及采用热网回冰的两级加热，可进一步提高该型机组的节能效益。
A heating stage allows the temperature of sublimation to be recorded.
在加热阶段可以记录下升华的温度。
The affecting factors of low value by activation energy determination include heating duration in low temperature stage, pureness of K feldspar and mixture of some plagioclase, quartz et al.
导致活化能取值偏低的影响因素包括低温阶段的加热时间、K-长石的纯度和部分斜长石、石英的混入等。
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