A seam tracking device is developed according to the requirement to weld hollow steel balls of net frame nodes.
根据空间网架结构结点空心钢球的技术要求，研制了一种焊缝自动跟踪系统。
A metal net frame is arranged inside an outer shell (1), and a plastics foam filtering core is arranged inside the metal net frame.
其结构是在外壳(1)内装有金属网框架，塑料泡沫滤芯置于金属网框架内。
The engineering survey and construction process and method of bolted ball joint net frame are introduced, and good result has been achieved.
介绍了施工现场的工程概况及螺栓球节点网架的施工工艺和施工方法，并收到了良好效果。
The utility model relates to a monolithic wire-net frame light foamed wallboard, which belongs to the technical field of building materials.
一种整体式钢丝网架轻质发泡墙板属于建筑材料技术领域。
Net frame system structure, which provides powerful technical support and guarantee for construction and development of network course.
NET框架体系结构的一部分，它为网络课程的建设与开发提供了强有力的技术支持和保障。
Net frame system structure, which provides powerful technical support and guarantee for construction and development of network course.
NET框架体系结构的一部分，它为网络课程的建设与开发提供了强有力的技术支持和保障。
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