Both Delta Sco and Gamma cas are rapidly rotating stars that are evolving off the main sequence and occasionally flinging mass from their equators.
天蝎座delta和仙后座gamma都是正在远离主星序的快速自转的恒星，并且它们不时地从其赤道区域抛出物质。
The radioactivity variation of the shallow part of Yellow River delta with the natural gamma ray spectrum logging from 16 Wells is studied.
通过16口浅层自然伽马能谱测井资料分析黄河三角洲浅层放射性的区域变化状况。
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