large ion

例句：

1. 1. The large ion cloud is the most significant feature of this region's weather.
   这个地区的天气最显著的特征是巨大的离子云。
2. 2. The large ion beam has been used to clean up polluted air.
   巨大的离子束被用来净化污染的空气。
3. 3.In the study, scientists found that large ions can be used as a tool for studying the properties of matter.
   在这项研究中，科学家们发现，巨大的离子可以被用作研究物质性质的一种工具。