To enhance the test effectiveness is in the long run to assure the spacecraft reliability and to reduce the development cost, thus producing more economic benefits.

提高环境试验的有效性，归根到底是为了提高航天器的可靠性，节省研制费用，因而也就产生巨大的经济效益。

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The research, federally funded by the National Science Foundation, could improve the safety and reliability of spacecraft that operate in the upper atmosphere.

此项研究由美国国家科学基金会拨款，旨在提高航天器在高层大气中运行时的安全性和可靠性。

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The enormous complexity of design, particularly of manned spacecraft with their millions of components, requires a high degree of miniaturization and reliability.

设计的高度复杂性，尤其是有人驾驶的有数百万组件构成的航天器，要求高度的小型化和可靠性。

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The final constellation of 30 satellites will more than double the spacecraft providing the American Global Positioning System, increasing the accuracy and reliability of navigation and timing signals that can be received across the planet.

BBC: NEWS | Science/Nature | EU-US strike sat-navigation deal