术语“样本设计”的详细信息

英译术语:

sample design

汉语语境:

现时在处理环境数据时，常使用统计方法剔除异常值。环境数据中的很大部分是环境中微量成分的监测数据。根据现有的知识，微量成分在环境中的浓度分布往往呈对数正态或大的正偏分布，而不是正态分布，但通常用于剔除异常值的统计方法是为正态样本设计的。因此，用统计法剔除异常值会使那些非正态样本的高值被不合理地剔除掉，从而使环境数据的准确性受到损害。

英语语境:

Presently, the statistical methods are often used to delete abnormal Values in the environmental data manipulation. The majority of raw environmental data are those of the microcomponents obtained in the environment monitoring. According to the present knowledge, the frequency distribution of a microcompo-nent concentration in the environment is most likely to be log-normal or extreme positive skew distribution instead of a normal distribution.