The Ares I-X flight is the first of three planned test flights for the Ares I rocket.

本次试飞的“战神i - X”是“战神i”火箭的三个飞行试验计划中的第一个。

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NASA needs good weather to launch Ares I-X because engineers need to see the rocket flight all the way through first stage separation, which will mark the end of the test.

NASA需要好天气来发射战神I-X，因为工程师们要在第一级火箭分离前观测火箭飞行全过程，第一级火箭分离标志着试飞的结束。

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Scientists simulated the ignition of the rocket and the in-flight moves of the capsule to test how the observation, control and communication systems at the Jiuquan Satellite Launch Center work.

科学家们模拟了火箭点火和舱体飞行，以演示届时酒泉卫星发射中心观察、控制和联络系统的运转情况。

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By November,nineteen sixty-seven, the moon launch rocket,Saturn Five, was ready for a test flight.

VOA: special.2009.07.08

SpaceShipTwo, its inventively named commercial vehicle designed to take (well-moneyed) civilians into outerspace, has just completed its first rocket-powered test flight.

ENGADGET

Thursday's flawed flight was the first time an Ariane rocket had malfunctioned since Ariane-5's maiden test flight exploded 37 seconds after launch in 1996.

CNN: Ariane rocket puts satellites in defective orbit

At least some of the incoming Republican panel chairmen and other senior GOP lawmakers, these officials said, may view the proposed test flight as circumventing congressional language to quickly develop a new heavy-lift NASA rocket able to transport astronauts past low-earth orbit.

WSJ: Lockheed Martin Sees Space Capsule Test Flight in 2013