[化] 焊缝管; 焊接管

welded tube的用法和样例：

例句

The diameter control is one of the important quality index for spiral welded steel pipes.螺旋焊接钢管的直径控制是螺旋焊管生产的重要质量指标之一。
It's provided to mill the two ends of the welded pipe and chamfer the inner and outer edges.它用于铣削焊管两端并倒内外棱角。

The London Tube

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VOA标准英语2012年(七月)

Friendliness on the tube

BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn

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伦敦生活

2016年CRI Two arch halves of extra-big bridge over Lancang River connected

The two steel truss arch halves of an extra-big bridge over the Lancang River were connected Tuesday morning after two vertical turns. The bridge, which sits 270 meters above the Lancang River, is a part of the DaliRuili Railway in southwest China's

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文本： CAM: Damn! It's a Flange 9000! This could take hours to _(1)_, Or five minutes if you could find the manager. TOMMY: I'll go find where he's __(2)__.

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美国小学英语教材4:第163课年轻武士西格德(9)

Then come with me, Sigurd, and I will give you the sword. 跟我来，西格德，我把剑给你。 Taking the weapon from the chest in which it lay, she handed it to the eager boy. 母亲从放武器的箱子里拿出来递给了西格德。 When S

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美国小学英语教材4

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