標(biāo)題: ASTM E 822-1992 用發(fā)射冰球法測定太陽能收集器覆蓋材料對冰... [打印本頁] 作者: 兌水 時間: 2009-11-2 16:12 標(biāo)題: ASTM E 822-1992 用發(fā)射冰球法測定太陽能收集器覆蓋材料對冰... E822-92(2003) Standard Practice for Determining Resistance of Solar Collector Covers to Hail by Impact With Propelled Ice Balls