In this paper, through the experimental study and theoretical analysis, sound isolation behavior of concrete hollow brick wall is studied.
本文通过试验研究和理论分析研究了混凝土(空心)砖墙体的隔声性能。
Through the experimental study on the law of ultrasonic wave and porosity, the law of effect of temperature on sandstone damage is obtained.
通过研究高温后砂岩的超声波速变化、孔隙率变化规律，得到了温度对砂岩损伤的影响规律。
Through the experimental study on the low navigation channel of Gezhouba Project, this paper discusses the similarity criteria for mobile bed and bank in model .
本文通过葛洲坝工程大江下游航道的试验研究，对动床动岸的模拟问题进行了有益的探讨。
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