用该算法进行了大量抽样实验，证实了算法的有效性。
The validity of algorithm has been verified by actual examples.
第二个原因在于信用衍生产品的大量增长，它们给予投资者在国债市场抽样的能力，从而使得投资者只暴露于他们觉得有吸引力的精确风险之下。
A second reason is the massive growth of credit derivatives, which has given investors the ability to sample the debt markets so as to get exposure to the precise risks they find attractive.
2008年末，爱尔兰因在猪肉抽样检查中检测出二恶英含量超出安全指标的200倍，召回大量猪肉和猪肉产品。
In late 2008, Ireland recalled many tons of pork meat and pork products when up to 200 times more dioxins than the safe limit were detected in samples of pork.
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