One of the most important is process space protection.

最重要的限制之一是进程空间保护。

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The technical methods about reducing space fragment in the space protection areas are enumerated.

列举空间保护区域减少空间碎片的技术措施；

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Last month, a space agency told the public that they were looking for "a planet protection officer."

上个月，一家航天局对公众宣称，他们正在寻找“行星保护官”。

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Ed White would leave the protection of the spacecraft and move out into the unknown emptiness of space.

VOA: special.2009.06.24

Charles Bolden, the head of the US space agency, NASA,and Lisa Jackson from the Environmental Protection Agency,or EPA, came to this Washington,DC middle school to encourage these youngsters to focus on math and science careers.

VOA: standard.2010.05.10

But the biggest obstacle to consolidation may have been the very breathing-space created by protection.

ECONOMIST: In America��s fiery furnace

That's a key element to be sure that even inside the countries they have a certain space for the assistance and protection of the population who could not escape the conflict.

BBC: Viewpoint: 'Our concerns are the civilians'

Earth's magnetic field gives the planet and its inhabitants a good measure of protection, but with space agencies seemingly intent on sending astronauts to the Moon and even to Mars in the next few decades, there is a pressing need for a fuller understanding of the Sun's activity.

BBC: NEWS | Science/Nature | Spacecraft go to film Sun in 3D