The principle and structure of a new trigger horizontal oil well cable butt tool are introduced.
介绍了一种新型水平井电缆对接工具的设计原理及设计要点。
In this paper the Submerged Arc Welding procedures for Q420E butt joint of Songhua River Stayed-cable Bridge were investigated.
对松花江斜拉大桥钢梁用q 42 0e厚板对接接头的埋弧焊焊接工艺进行了研究。
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