正常冷凝 的英文怎麼說
中文拼音 [zhēngchánglěngníng]
正常冷凝
英文
normal freezing-
The author has done much research work in examining the functions of raw materials, as well as making graph analysis of the raw material. as a result, achievement have been made : ( 1 ) making sure of the standard factor and t he best mixture proportion, ( 2 ) finding out the best way of measuring the index of the high performance concrete, ( 3 ) the endurance of this high performance concrete and the volume stability have been experimented ; ( 4 ) the great economic and social benifit are obtained by cost analysis
其主要工作進行了各種原材料的性能檢驗並做出相應圖表分析；對摻超細礦渣粉末的高性能混凝土進行正交試驗，確定了主要水平因子和最佳配合比；通過對高性能混凝土的耐久性試驗及高性能混凝土的體積穩定性試驗，確定檢測高性能混凝土耐久性指標的最佳方法及高性能混凝土的熱脹冷縮率和體積穩定性；通過對高性能混凝土的成本分析，確定摻超細礦渣粉的高性能混凝土其經濟效益和社會效益非常顯著。1. introduction for the pre - stressed concrete bridges in offshore and cold area, due to the corrosion effect of the corrosive agents in the environment to the structures, the safety of the bridge structures will decline with the service time, and this will affect the normal use of the bridge structures in the residual service time
第一章緒論處于沿海地區及冬季寒冷地區的預應力混凝土橋梁，由於所處環境或冬季所採用的除冰鹽中氯離子的腐蝕作剛，導致結構安全性的降低，使結構不能保證其在後續使用期內的正常使用，造成較大的經濟損失。
分享友人