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Therefore the establishment of cost accounting and evaluation of heating system is very necessary.
因此建立供热成本核算和评估体系是非常必要的。
youdao
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Electric cost causes many extruders to choose gas heating.
电耗成本高也引发很多挤压机选择使用天然气加热。
youdao
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Electric cost causes many extruders to choose gas heating.
电耗成本高也引发很多挤压机选择使用天然气加热。
youdao