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| 41. | The masts of overhead stacking crane are grouped into fixed and telescopic types. |
| 桥式堆垛起重机的立柱分为固定式和伸缩式两大类。 |
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| 42. | auxiliary reinforeing strand for concrete structure.e.g Long spanned bridge′s on railway and highway,overhead |
| 该产品主要作预应力混凝土结构配筋用，如大跨度铁路和公路的桥梁、吊车梁、岩土锚固工程，多层工业厂房等。 |
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| 43. | In response to it, an overhead traveling crane box-girder optimal design software is developed and use |
| 对箱形主梁进行了优化设计软件开发,应用该软件起到了很好的效果。 |
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