標題: ASTM A 932-2001用瓦特計-安培計-伏特計和薄鋼板樣品測試電源... [打印本頁] 作者: 兌水 時間: 2009-9-10 08:31 標題: ASTM A 932-2001用瓦特計-安培計-伏特計和薄鋼板樣品測試電源... A932/A932M-01 Standard Test Method for Alternating-Current Magnetic Properties of Amorphous Materials at Power Frequencies Using Wattmeter-Ammeter-Voltmeter Method with Sheet Specimens