单线螺纹的英文 单线螺纹用英语怎么说

"单线螺纹" can be translated as "single-start thread" in English.

Here, “单线” means “single-start” (referring to a thread with only one helical ridge or groove), and “螺纹” means “thread” (a helical ridge or groove on the surface of a cylinder or cone).

This term is commonly used in mechanical engineering and manufacturing contexts.