The structure has the advantages of simple and practical use, easy installation and future maintenance, and on-site welding-free property, and rust caused by welding is prevented.
该结构简单实用，易于安装和以后的检修，并且达到现场免焊接的目的，防止由于焊接带来的锈蚀问题。
Based on the analysis of site welding, the main welding defects are lack penetration, lack fusion, slag inclusion and porosity.
从现场施工情况分析，焊接的内部缺陷主要有未焊透、未熔合、夹渣和气孔等几种。
It is freely supported on the support beams of economizer to avoid the site welding between fixing arrangement and support beams.
该设计采用框架式省煤器固定结构，并自由支承在省煤器支承梁上，以避免固定装置与支承梁的现场焊接。
Blowout preventing lines shall be connected by threads and standard flanges, and on site welding is forbidden. Field welding is not permitted.
防喷管线应采用螺纹与标准法兰连接，不允许现场焊接。
The result of testing on site manifests that the effect of spot welding constant current control is good.
实际焊接考核试验结果表明：控制系统具有很好的恒流控制效果。
Cold welding process should be adopted with strict requirements for technical operational procedure, and technical problems for tyre welding on site can be solved.
在焊接过程中，只要严格按照工艺技术措施操作，采取冷焊接工艺进行焊接，可以解决轮带现场焊接的技术难点。
The main reason for tyre peeling consists in fatigue failure during surface contacting, and the remedial measure to tyre peeling consists mainly in welding on site.
轮带发生剥落掉块的原因主要是表面接触疲劳破坏，处理剥落掉块的方法主要是现场焊接。
Based on the fracture site investigation and macro-rod fracture analysis, the welding rod fracture occurred in the vicinity of the weld fusion line.
通过对最近的一次断裂拉杆现场调查和宏观断口分析，发现断裂发生在拉杆的补焊焊缝熔合线附近。
Quality and schedule of group welding on site has been improved through pre-assembly.
通过预组装，施工现场组焊质量和周期得到了保证。
You don't need any bolting, screwing, or welding on site.
你不需要任何螺栓连接，螺纹连接，或焊接现场。
On site experiment at oil field proves that the heat barrier pipe made by welding method has rather good quality.
焊接的隔热管经油田现场试验，结果表明其性能良好。
Furthermore, the paper studied on special construction process about thick slab welding technique, cast steel site-welding technique and cell cantilever assembly without scaffold technique.
在超高层的钢结构施工技术方面，本文则重点研究了现场厚板焊接技术、铸钢节点焊接技术和单元扩大悬臂安装施工技术的原理及技术要点。
Furthermore, the paper studied on special construction process about thick slab welding technique, cast steel site-welding technique and cell cantilever assembly without scaffold technique.
在超高层的钢结构施工技术方面，本文则重点研究了现场厚板焊接技术、铸钢节点焊接技术和单元扩大悬臂安装施工技术的原理及技术要点。
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