In the latest test, SpaceShipTwo did not fire its rocket engine to climb to space.

在最近一次测试中，太空飞船二号由于火箭引擎点火失败而没有升入太空。

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The test represents another successful demonstration of the performance of the fully integrated THAAD system's radar, launcher, interceptor and fire control in its tactical configuration.

测试还成功演示了全集成THAAD雷达、发射器、拦截器和火力控制的战术配置性能。

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To test the theory, the scientists recreated what ancient tool makers might have done by heating a pile of silcrete stone in a fire pit.

为了检验这个理论，科学家们通过在一个火坑里加热砾岩石，重现了远古工匠们可能的做法。

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U.S. and South Korean officials have said that North Korea seems to be preparing to test-fire its long-range missile, the Taepodong-2.

CNN: U.S. envoy for North Korea may visit Pyongyang

South Korean officials have also said the North is poised to test-fire a medium-range missile capable of reaching the American territory of Guam.

NPR: North Korea Sets Preconditions For Talks' Restart

That didn't take long -- just days after its first test fire, the Liberator, a 3D-printed pistol designed by Defense Distributed founder Cody Wilson, has caught the attention of the federal government.

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