The NOAA is monitoring these zones; it is easier to test for low oxygen levels than to find the oil plumes far below the surface.

NOAA 正在监测这些区域，比起寻找表面下油雾，测试低氧水平相对容易。

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Schalk presented attendees a video showing how test subjects can control computer games through the use of electrodes attached to the surface of their brains.

Schalk向与会者展示了一段测试人员通过贴在他们大脑表面的电极来控制电脑游戏的视频。

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In each position compare the test area with the surface of the reference area.

在每一个位置把测试区域与参考区域的表面做比较。

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The buoys also contain weather-sensing devices that test for surface temperatures, subsurface temperatures, wind speed, and other indications of changing weather.

CNN: La Nina spawns extreme weather

The severity of the laboratory test was equivalent to an oblique collision with the rocky surface of the Earth - a comet coming in at an angle of less than 25 degrees from the horizon, rather than head on (perpendicular to the Earth's surface).

BBC: Comets could have seeded life on Earth

Since Russia and the U.S. signed a partial test-ban treaty in 1963, their blasts have been deep below the earth's surface.

CNN: ASIANOW - Asiaweek