To complete the installation and unloading of steel bracket of such great weight smoothly involves complex structure stress and many difficulties in swing.
要安全顺利完成如此大重量的钢支架安装与卸架施工，结构受力复杂，吊运难度大。
The installation of the exhibits may require mechanical and electrical work, and loading and unloading equipment may call for an additional work force.
布展可能需要机械和电力劳动，而装卸设备可能求额外的劳力。
The unloading platform design and installation technology are introduced according to engineering characteristics and transportation demands.
介绍了针对工程特点和运输需求的大型施工卸料平台的设计与安装技术。
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