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.

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。

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No doubt your own modeling exercises will bring in different project compositions, cost structures, team sizes, and so forth.

很可能您自己的建模应用将带来不同的项目构成、成本结构、团队规模等等。

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Color differences are most likely due to regional changes in surface composition or the sizes and structures of the grains in the moon's icy soil.

颜色的差异很可能是因为卫星表面冻土的成分或者粒度与结构的区域性变化。

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Indeed, a number of western and southwestern states (such as Washington, Nevada, Arizona, and Texas) are actively pursuing employers of all shapes and sizes and workers of all kinds through more favorable tax structures.

FORBES: Despite A Record High Dow, Middle Income Californians Aren't Celebrating

Very large team sizes and more complex management structures.

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