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Its design, process excellence for the stone arch bridge model.
它的设计、工艺为石拱桥的卓越典范。
youdao
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The utility model discloses a natural stone thermal-insulation water cup structure.
本实用新型公开了一种天然石保温水杯的结构。
youdao
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The utility model discloses a natural stone thermal-insulation water cup structure.
本实用新型公开了一种天然石保温水杯的结构。
youdao