Sample stacking in capillary electrophoresis can concentrate sample species through the electrical field strength gradient caused by the inhomogeneous buffer concentration field in capillary.

毛细管电泳样品电堆积富集是一种通过缓冲溶液浓度的差异在毛细管中形成电场强度梯度，从而对样品进行浓缩的富集技术。

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While designing buffer areas, it is better to enable the buffer areas cover all the core patches as well as the affecting distance to certain species.

在考虑距离对目标物种影响的同时，还应考虑缓冲区的范围应该覆盖所有的核心斑块；

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They are the nurseries of the ocean, where many species of fish and shrimp breed and serve as a buffer against coastal erosion in a region where much of the population livesin low-lying areas.

VOA: standard.2010.03.29