Unc Chapel Hill Graduate Student Charged Shooting Professor With Murder Of

Unc Chapel Hill Graduate Student Charged Shooting Professor With Murder Of

螺纹代号中的unc、unf、unef、un、uns的区别如下: unc: 统一粗牙螺纹,主要用于需要较高强度和较大螺距的场合。牙型较大,适用于负载较重的环境。 unf: 统. 粗牙螺纹(unc)、细牙螺纹(unf)、超细牙螺纹 (unef)、特殊牙距螺纹 (uns)之间有牙形、牙齿量、适用情况的区别: 1、牙形 unc表示美国统一螺纹un系列(外螺纹牙底半径任选)中. Un,unf,unc;是英寸制统一螺纹的识别 un是英文unified national的缩写,属于统一螺纹的恒定螺距系列。unf是英文unified national fine的缩写,是统一螺纹细牙系列。unc是英文unified.

UNCChapel Hill shooting Graduate student charged with murder of

UNCChapel Hill shooting Graduate student charged with murder of

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UNCChapel Hill shooting Graduate student charged with murder of

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Graduate Student Charged in Shooting Death of UNCChapel Hill Professor

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