The results show that the proportion of the total embodied energy of construction materials is the largest one in the construction initial energy use,the proportion of the total transport use of materials is the second,and the proportion of the total energy use in the construction courses .
以郑州地区的住宅建筑为例,定量分析了住宅建筑施工初始能耗的特征,结果表明:建筑材料总内含能量所占比例最大,建筑材料运输总能耗次之,现场施工过程总能耗最小;降低主要建筑材料的内含能量强度值和单位建筑面积内建筑材料的使用量,是降低施工初始能耗的有效途径。
With the in-depth dwelopment of the study on ocean ecosystem dynamics in China,the study on the chemical composition and energy content of marine fishes is becoming increasingly important and necessary.
随着海洋生态系统动力学研究的深入,海洋鱼类生化组成及能量含量的研究越来越显现出它的重要性和必要性。