Crane makers are usually happy to give details of the dimensions of their cranes and bridges to structural engineers . 吊车制造厂商一般乐于将他们生产的吊车和桥架的详细尺寸提供给结构工程师。
System of overhead traveling crane parametric design 桥式起重机桥架的参数化设计
Engineering design standards of steel - made cable tray 钢制电缆桥架工程设计规范
Fiber - reinforced plastics cable support rack in coal mine 煤矿井下用玻璃钢电缆桥架
Technical specification for aluminum - alloy cable tray 铝合金电缆桥架技术规程