“dual-rotation friction stir welding”的概念、定义、翻译、参考文献-科学参考

单词	dual-rotation friction stir welding
释义	dual-rotation friction stir welding Encyclopedia 工学摩擦焊释 dual-rotation friction stir welding双轴肩搅拌摩擦焊采用带有上、下两个轴肩的搅拌工具，搅拌头的上、下轴肩与焊件的上、下表面紧密接触，与共用的搅拌头一起转动，并在设定的压入量下完成焊接的搅拌摩擦焊。
随便看	backward derivative function backward difference backward difference operator backward difference quotient backward differentiability backward differential equation backward differentiation formula backward Dini derivative backward effects backward elimination backward equation backward error backward error analysis backward Euler method backward induction backward interpolation backward interpolation formula backward Kolmogorov differential equations backward movement backward operator backward parabdic equation backward parabolic equations backward production capacity backward reachability backward reaction

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