Small rectangular backup bars were used to fabricate the web - bottom flange connection.
在腹板与下翼缘的施焊中使用小矩形挡板.
辞典例句
Remove the bottom flange cover.
拆卸底部法兰盖.
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Reattach the relief valve hose to the elbow in the bottom flange cover.
重新将安全阀软管接到底部法兰盖内的弯头上.
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