研究人员使用不同的技术研究了火山灰颗粒的尺寸和结构，例如原子力显微镜、电子扫描显微镜和X射线衍射。
The researchers analysed the sizes and structures of ash particles using a variety of techniques, such as atomic force microscopy, scanning electron microscopy and X-ray diffraction.
本文阐述了粉煤灰的组分、结构及物理性质，因为它们对粉煤灰的“火山灰反应”产生有益的作用。
This paper describes the constituent, the structure and the physical characteristics of fly ash which might have favourable influence on "Pozzolanic reaction".
近黑色的结构是几乎可以肯定的火山灰丰富的沉积物了沙丘。
The nearly black structures are almost certainly dunes made of volcanic ash-rich sediments.
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