In theory, expenditure taxes are better than income taxes, since they do not punish saving.
理论上说，由于支出税不抑制储蓄，所以支出税比所得税更好。
The hot summer and winter area is major area of construction saving energy, the theory and practice of technical construction saving energy of this area is a new problem.
冬冷夏热地区是今后我国建筑节能的重点地区，基于该地区气候条件下的建筑节能技术的理论和实践研究是全新的课题。
In chapter 5 the analytical theory and method in generalized energy saving are put forward.
第五章提出了广义节能分析的理论和方法。
In chapter 5 the analytical theory and method in generalized energy saving are put forward.
第五章提出了广义节能分析的理论和方法。
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