The XRD patterns of both the samples were well indexed to the standard cubic CsPbBr3 phase, with no observable secondary phases。
个人理解:withno observable secondary phases 有种补充说明的意思,难道是什么补充状语?
The XRD patterns of both the samples were well indexed to the standard cubic CsPbBr3 phase, with no observable secondary phases.
网友理解正确。介词短语除去作补充状语外,还可以理解为“结果状语”,均可。