Management of Remaining Risk 剩余风险管理
About fifty percent of the remaining coral are under risk of collapse.
VOA: special.2010.08.10
"We know that surface use of dispersants decreases the environmental risk to shorelines and organisms at the surface and we know that dispersants break down over weeks rather than remaining for several years as untreated oil might."
VOA: standard.2010.05.18
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