美标准导弹进入关键试验阶段美海军计划于７月份开始进行４型标准２导弹（ＳＭ－２ＢＬＯＣＫ４）的海上试射，并准备于明年在白沙导弹靶场进行进一步试验，以验证该导弹反战术弹道导弹的能力。美海军已在白沙靶场完成了１０次４型标准２导弹的试射。这些试验始于约一年前... U.S. Standard Missiles Enter Critical Test Phase The U.S. Navy plans to launch a test-firing of the Type 4 Standard 2 Missile (SM-2BLOCK4) at sea in July and is prepared to conduct further tests at Pak Sha Missile Range next year to verify that the missile’s anti-tactical ballistic missile Ability. The U.S. Navy has completed 10 test flights of Type 4 Standard 2 missiles on the Baisha Shooting Range. These tests began about a year ago ...