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钢管 gāngguǎn
chem. steel tube and pipe
met. steel pipe (【技】两端开口、断面中空、纵向形状相同、长度与周边之比较大的一类钢材。通常断面为圆或方形,也有断面为梯形、椭圆和各类非对称形状的产品。钢管采用拉拔法、轧制法、挤压法、穿孔法及焊接法生产。前四种方法生产的钢管为无缝钢管,后一种方法生产的钢管为焊接钢管。拉拔通常在冷态下进行;轧制可以在冷态下进行,也可以在热态下进行。挤压和穿孔一般是在热态下进行。); steel tube; steel tubing; steel tube (Just over a hundred years ago, steel tubes began to be used in making bicycles. 开始用钢管制造自行车,这也不过是百余年前的事。); tube
steel. pipe
tech. steel conduit; steel piping; tubular steel
舞台吊灯具和布景的钢管 gāngguǎn
tech. lighting batten; light pipe
钢 管
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