In the fifth to fourth century during the Eastern Zhou period, new techniques and styles appeared, along with improved methods of construction.
在第五至第四世纪，在东周时期，出现了新的技术和风格，同时施工方法的改进。
Results indicate that the modulus can be improved largely by using above three methods in the design and construction of graded broken stone base.
综合考虑以上因素的试验路模量反算结果表明：级配碎石的强度有大幅度提高。
Results indicate that the modulus can be improved largely by using above three methods in the design and construction of graded broken stone base.
综合考虑以上因素的试验路模量反算结果表明：级配碎石的强度有大幅度提高。
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