double curvature arch aqueduct的意思|示意
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双曲拱渡槽
double curvature arch aqueduct的网络常见释义
双曲拱渡槽 ... trussed arch aqueduct 桁架拱式渡槽 double curvature arch aqueduct 双曲拱渡槽 ribbed arch aqueduct 肋拱渡槽 ...