... 阶梯形地基:stepped foundation 阶梯形底脚:stepped footing 阶梯式电梯:escalator ...
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... 阶梯式电梯:escalator 阶梯步级:flight 阶式基础:stepped footing ...
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... 阶梯形落差:stepped drop 阶梯形基脚:stepped footing 阶梯形地基:stepped foundation ...
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... stepped drawing frame 分段拉伸机 stepped footing 阶形基础 stepped gear 塔齿轮 ...
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