双语例句
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The spiral pipe conveyor is welded with a continuous spiral blade in the cylindrical shell.
螺旋管输送机是在圆筒形机壳内焊有连续的螺旋叶片，机壳与螺旋叶片一起转动。
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HPDE (high-density polyethylene) spiral pipe has a broad application prospect for its unique properties.
即高密聚乙烯螺旋管以其独特的优点，在工程中有着十分广泛应用前景。
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A reliable way to improve the quality of spiral pipe was the substitution of high frequency butt welding for HF lap welding.
高频对焊代替高频搭焊是提高中直径螺旋焊管质量的可靠途径。
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