The solid state laser starts test-firing at White SandsMissile Range in New Mexico later on this year.
固体激光器今年晚些时候将在新墨西哥州白沙靶场开始试射。
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The belligerent talk was accompanied by Pyongyang's test-firing of two short-range missiles, bringing to five the number launched since its nuclear test on Monday.
A successful test-firing was held on Friday and the first nuclear collisions will take place in the autumn, building up to full power around the time of the millennium.