A sample of rocket engine thrust chamber with cooling channels was successfully manufactured by APEF.

成功制造出带冷却通道的火箭发动机推力室身部样件。

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The test result shows that maximum tolerance of the simulated ambient pressure deviation is about 14% under which the engine thrust uncertainty remains less than 1.0%.

试验结果表明，在保证推力不确定度优于1.0%的条件下，拉瓦尔喷管发动机高空模拟试验的模拟偏差容限约为14%。

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Thrust test-bench is one of the key technologies for accurate measure of rocket engine thrust. But test-benches that can compromise with both long and short burst measurement are quite few.

推力测试台架是准确测量火箭发动机推力的关键技术之一，但现有的测试台架能够很好兼顾长、短脉冲测试的较少。

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"This aircraft can take off within 125 meters because a portion of the engine thrust is deflected downwards, " said Dr. Iannelli.

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"We are very pleased that the engine started and continued to thrust, " said Marc Rayman, Deep Space 1's chief mission engineer and deputy mission manager at NASA's Jet Propulsion Laboratory in Pasadena, California.

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With a failed right engine and a malfunctioning left engine that was not generating sufficient thrust, the aircraft quickly lost altitude.

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