Recently, researchers have used data collected by monitoringsurface water temperatures to improve the ability of a reef to recover from bleaching.
最近，研究人员通过监测表面水温获得数据，并用此数据来提升珊瑚礁从漂白状态中恢复的能力。
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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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Combined with impedance concept, a method for on line structure health monitoring based on self sensing piezoelectric patches, which are bonded on the surface of the structure, is presented.