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建筑电梯安装工程
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建筑电梯安装工程
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机电工程
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建筑电梯安装工程
电梯生产单位出厂后的产品,在施工现场装配成整机至交付使用的过程。电梯指动力驱动,利用沿刚性导轨运行的箱体或者沿固定线路运行的梯级(踏步),进行升降或者平行运送人、货物的机电设备。电梯按照结构类型可分为垂直电梯、自动扶梯和自动人行道。
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surface of section
surface of semiconductor
surface of singularities
surface of slope
surface of spatial type
surface of striction
surface of the second class
surface of third order
surface of translation
surface of zero velocity
surface optics
surface order
surface parameterization
surface passivation technology
surface patch
surface penetrating effect
surface performance testing
surface phase
surface phenomena of liquids
surface phonon
surface photometer
surface photometry
surface photovoltage
surface photovoltage spectrum
surface physics
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