Y punch
英 [waɪ pʌntʃ]
美 [waɪ pʌntʃ]
【计】12行穿孔（在何勒内斯卡片上），Y穿孔，正数穿孔
双语例句
- A line of punch positions parallel to the Y datum line of a punch card.
和卡片的Y基准线平行的一行穿孔位置。 - By analysing the failure mechanism of bend and punch, it has been obtained that when ( uf_y) is equal to ( uf_y) 0, bending failure and punching failure will occur simultaneously.
本文通过分析弯曲破坏与冲切破坏的机理及其相互影响，得到了：当ufy等于（ufy）￣0时，弯曲破坏与冲切破坏将同时发生； - The paper also presents the investigation of microhardness, surface and fracture zone feature, crystalline structure and chemical composition of TiN, TiC and Ti ( C_xN_y) super-hard coatings. Finally, the paper gives out application cases of the PCVD technique in the cold extrusion punch.
并对其制备的TiN、TiC、Ti（CxNy）超硬膜进行了显微硬度和化学成份等分析，最后介绍了该项技术在冷挤压冲头上的应用实例。