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AASHTO
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American Association of State Highway and Transportation Officials
انجمن ادارات حمل ونقل و بزرگراههاي ايالتي امريکا
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AASHTO is a leading source of technical information on design construction and maintenance of highways and other transportation facilities including aviation highways public transit rail and water.
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سال :
2023
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تعداد :2180
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دسته :Construct
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اشتراک :
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پیمایش استانداردها >>
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