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1
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2
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3图书出版 1962“...United States. Bureau of Public Roads...”
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4
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5图书出版 1963“...United States. Bureau of Public Roads...”
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6图书出版 1964“...United States Bureau of Public Roads...”
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7图书出版 1967“...United States. Bureau of Public Roads...”
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8
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9
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10
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11图书出版 1963“...United States. Bureau of Public Roads...”
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12
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13
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14图书出版 1965“...United States. Bureau of Public Roads...”
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15图书出版 1970“...United States. Bureau of Public Roads...”
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16图书出版 1964“...United States. Bureau of Public Roads...”
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17
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18图书出版 1965“...United States. Bureau of Public Roads. Bridge Division. Hydraulics Branch...”
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19
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20图书出版 1950“...United States. Bureau of Public Roads...”