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人行桥
释义
人行桥
Encyclopedia
工学
桥梁类型
释
pedestrian bridge
人行桥
供行人步行和自行车行驶的桥梁。建造人行桥的主要目的,是为了避免行人(包括人力或电动自行车)与机动车相互干扰,保证交通安全。
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submultiplicative
sub-nanometer precision full frequency optical fabrication
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subnormal dividend plus extra dividend policy
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subnormal formal series
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