“double-J groove weld”的概念、定义、翻译、参考文献-科学参考

单词	double-J groove weld
释义	double-J groove weld [¦dǝb·ǝl `jā ´grüv ´weld] ^METALLURGY A groove weld in which one member has a joint edge in the form of a double J or two half U's, one from each side. Also known as double-U groove weld.
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