標題: ASTM E 1901-1997 用接觸式脈沖回波直波束超聲波法檢測和評... [打印本頁] 作者: 兌水 時間: 2009-11-10 09:56 標題: ASTM E 1901-1997 用接觸式脈沖回波直波束超聲波法檢測和評... E1901-97(2003) Standard Guide for Detection and Evaluation of Discontinuities by Contact Pulse-Echo Straight-Beam Ultrasonic Methods