2) underwater welding
水下焊接
1.
Development and application of underwater welding and cutting technique;
水下焊接与切割技术应用及发展研究
2.
Characteristics of GTAW arc in underwater welding under high-pressure air condition;
水下焊接高压空气环境下GTAW电弧特性
3.
Study on the pulsed feeding wire system for underwater welding;
水下焊接脉动送丝机构的研制
3) down weld
下向焊
1.
Analysis of heating line weld defects by down weld with fibrin electrode;
供热管道纤维素焊条下向焊焊接技术分析
2.
Introduced here is the advanced flux cored down weld technology.
介绍了药芯焊丝自保护下向焊技术。
4) downward welding
下向焊
1.
Application of technology of metal pipe full-position downward welding in a construction;
金属管道全位置下向焊技术在某工程中的应用
2.
The article analyzed the feature of downward welding technology and the special demand for arc welding machine.
就管道焊接中的高效焊工艺方法———管道下向焊的工艺特点及对弧焊机的特殊要求进行了剖析，介绍了适用该工艺方法的几种品牌焊机，对工程施工单位及焊机制造厂商具有一定参考价值。
3.
It also presents the application of downward welding method and craft in the practice and caution.
对中国第一汽车集团公司供热管网工程进行介绍,对长距离大管径金属管道焊接中的高效焊接工艺方法进行简要综述,介绍了管道下向焊施工方法及工艺在工程实际中的应用及注意事项,对下向焊施工方法及工艺进行了推广。
5) vertical down welding
立向下焊
1.
Using high titanium oxide slag system which possesses short slag feature, a high titania type electrode E6013 used for all position and vertical down welding was developed by many tests.
通过大量试验 ,研制出全位置带立向下焊的高钛型药皮的E6 0 13焊条 ,采用了具有典型短渣特性的高氧化钛渣系 ,该焊条具有优异的焊接工艺性能 ,全位置及立向下焊操作性能优良。
6) vertical down welding
向下焊
1.
Based on a simulation test, the welding technique of steel plate (Q235A ? δ =2mm ) using the electrode E4316 in vertical down welding was discussed.
通过模拟试验 ,对选用E4316 (J42 6 )焊条和采用向下焊工艺焊接δ2mm的Q2 35A钢板技术进行了详细的探讨 ,发现该工艺可以用于无强度要求的薄板结构的焊接 ,并首次成功地应用于撬装式工艺房壳的焊接生
2.
In this paper, the improvement of vertical down welding in piping is introduced and the technology of mixed vertical downwards welding and co - operated vertical down welding are described .
介绍了手工向下焊焊接工艺在长输管道焊接方面的发展,主要叙述了混合型向下焊焊接工艺和复合型向下焊焊接工艺的应用。
补充资料：地下水水资源评价(见水资源评价)
地下水水资源评价(见水资源评价)
d ixiashui shuiziyuan Ping】ia地下水水资源评价见水资源评价。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条