標(biāo)題: ASTM F 457-2004 裝有模擬或數(shù)字儀器的測速輪上速率及距離校... [打印本頁] 作者: 兌水 時間: 2009-11-19 08:38 標(biāo)題: ASTM F 457-2004 裝有模擬或數(shù)字儀器的測速輪上速率及距離校... F457-94(1999) Standard Test Method for Speed and Distance Calibration of a Fifth Wheel Equipped With Either Analog or Digital Instrumentation