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railway subgrade engineering
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railway subgrade engineering
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工学
铁路路基工程
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railway subgrade engineering
铁路路基工程
位于铁路道床下面支承轨道和传递列车荷载的基础建筑物。包括铁路路基本体、铁路路基排水、铁路路基防护等设施。
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period domain
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period doubling bifurcation
period-doubling bifurcation
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period expense of books
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periodic acid-Schiff reaction (PAS reaction)
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Periodical Publishers Association
periodicals of ethnic medicine
periodicals of traditional Chinese medicine
periodic arrangement
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