The welted joint, executed in this way, is a rapid means of jointing and effectively allows for expansion and contraction of the metal covering.
这种新方法需要一种专门的高效率的机械装置。对接坡口焊是一种连接迅速的施焊工艺，它可以有效地保证金属盖板的胀缩。
The dissimilar metal structure of titanium alloy and stainless steel shows wide application perspective. But the key which realizes their application is both solid jointing.
钛合金和不锈钢的异种金属结构具有广阔的应用前景，但实现其应用的关键是两者可靠的连接。
Metal construction. jointing by means of bolts with controlled tightening. calibration of torque wrenches.
金属结构。可控拉紧螺栓连接。扭力扳手校准。
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