英语翻译（1） 小径管环向对接焊接接头的透照布置小径管采用双壁双影透照布置,当同时满足下列两条件时应

英语翻译（1） 小径管环向对接焊接接头的透照布置小径管采用双壁双影透照布置,当同时满足下列两条件时应

Pipe ring (1) the path to the butt welded joint of transillumination layoutSmall tube with double-wall double transillumination decorate, while at the same time satisfy the following two conditions should be tilted transillumination mode elliptic imagingA) T (wall thickness) 8 mm or lessB) g (weld width) D0/4 or lessElliptical imaging, should control affect the opening width of the (weld projection maximum spacing) up and down at about 1 times the width of the weld.Do not meet the above conditions or elliptical imaging have difficulty can adopt vertical transillumination mode overlapping imaging.

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