The phase composition and microstructure of mullite powders were investigated by X-ray diffraction and field emission scanning election microscopy techniques.

利用X射线衍射仪和场致发射扫描电子显微镜等手段对合成粉体的相组成、结构和形貌进行了研究。

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Councillors seeking re-election were not the only ones whose performances were being scrutinised - polling took place on the same day auditions for talent show guru Simon Cowell's X Factor were being held in Inverness.

BBC: Independents dominate in Highlands and Islands

The ballot paper in a by-election is like at a general election, with voters putting a X in the box next to the name of the candidate they want to vote for.

BBC: How the PCC elections work

The most important determinant of that question may lie with the X-factor in this year's election returns: How will Democrats who successfully ran in what have traditionally been relatively conservative Republican districts conduct themselves?

CENTERFORSECURITYPOLICY: What now?