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corrugated metal pipe
bridg.constr. 波纹金属管; 皱纹金属管
busin. 瓦楞铁管
mining. 金属波纹管
tech. 波形金属管波纹金属管; 皱纹钢管
corrugated metal pipe: 8 phrases in 3 subjects
Bridge construction2
Construction1
Technology5