These included roads, ports and airports, all of which have experienced accelerated deterioration ever since.
从那时起，以上行业就都经历了不断加速的恶化过程。
The carrying capacity, ductility and structural behaviors deterioration of corroded reinforced concrete beams were studied by the accelerated corrosion methods under artificial climate.
通过采用人工气候环境加速锈蚀方法，研究了锈蚀钢筋混凝土梁的承载力、延性及其结构性能退化机理。
The deterioration is accelerated because the strength grade of concrete is too low, depth of cover too thin, and drain off water unsuitable.
调查表明，原设计混凝土标号过低，保护层过薄，桥面排水不当，加速了劣化过程。
The deterioration is accelerated because the strength grade of concrete is too low, depth of cover too thin, and drain off water unsuitable.
调查表明，原设计混凝土标号过低，保护层过薄，桥面排水不当，加速了劣化过程。
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