便携式小吊机是起重工具的一种。

Portable small crane is a lifting tool.

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年第一台手动式家用楼房小吊机诞生，需要固楼房阳台上，现已淘汰。

The first small crane appeared. It was driven by hand, but it needed to be fixed on the balcony. Now it have been sifted out.

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边跨合龙阶段与拆除吊机阶段对非线性的影响非常小，在这几个工况可以不考虑非线性的影响。

Closure construction of side spans and the remove of crane have very little effect on nonlinearity, so effects of nonlinearity can not be considered in these load cases.

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边跨合龙阶段与拆除吊机阶段对非线性的影响非常小，在这几个工况可以不考虑非线性的影响。

Closure construction of side spans and the remove of crane have very little effect on nonlinearity, so effects of nonlinearity can not be considered in these load cases.

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