The effect of concrete carbonization degrees on chloride diffusion coefficient has been analyzed by rapid carbonization test and rapid permeability test;
进行了室内混凝土快速碳化试验和氯离子快速渗透试验。通过试验，研究了混凝土不同碳化程度对氯离子扩散系数的影响。
The coal bed gas reservoirs in China are characterized by low permeability, low desorption speed, low production, rapid production decline and difficult to realize industrial scale production.
中国煤层气藏的特点是渗透率低，解吸速度低，产量低，产量递减快，工业化生产难。
Authors adopted the rapid chloride permeability test method to research influences of fly-ash amount on anti-chloride-permeability performances of steam cured concrete.
采用快速氯离子渗透试验方法研究了粉煤灰掺量对蒸汽养护混凝土抗氯离子渗透性能的影响。
The high damping concrete was prepared, and the effect of lightweight aggregate on the impermeability of high damping concrete conducted with a rapid chloride permeability method was investigated.
制备出高阻尼混凝土并采用快速氯离子渗透法研究了轻集料掺量及其掺入方式对其抗渗性能的影响。
The invention component combines the high strength of the ceramic film tube and the macromolecule better air permeability, has a rapid degassing speed, lower cost, convenient installation and use.
本发明组件将陶瓷膜管的高强度和高分子高透气性结合起来，脱气速度快、造价低、安装使用方便。
With the rapid development and permeability of Internet, wire net and wireless net, the UMS (Unified Messaging Service) has produced.
随着因特网、有线网、无线网的融合，统一信息服务应运而生。
With the rapid development and permeability of Internet, wire net and wireless net, the UMS (Unified Messaging Service) has produced.
随着因特网、有线网、无线网的融合，统一信息服务应运而生。
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