A method of face center tracking which is based on bilateral symmetry of gradient direction is discussed in this paper.

研究了基于梯度方向双边对称性的旋转人脸中心的跟踪方法。

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By electron diffraction analysis, it is identified that the alloy phase has a face center orthogonal structure and there are some orientation relationship between the Mg ma.

通过电子衍射分析确定出该合金相具有面心正交结构，与镁基体间存在着一定的取向关系。

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By electron diffraction analysis, it is identified that the alloy phase has a face center orthogonal structure and there are some orientation relationship between the Mg matrix and the alloy phase.

通过电子衍射分析确定出该合金相具有面心正交结构，与镁基体间存在着一定的取向关系。

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When the center closes in late afternoon, thousands will be turned away and face the prospect of coming back tomorrow.

VOA: standard.2010.01.30

Then, she watched as they streamed down his face on center stage before 4, 000 troops.

CENTERFORSECURITYPOLICY: What are we fighting for?

But the center will face significant hurdles: While sequencing is declining in cost, understanding the origins of diseases such as cancer and devising potential treatments requires costly and complicated analysis of the sequencing.

WSJ: New Home for Genome

Santos and Mockus will compete in a mid-June runoff, in which Mr. Santos could well face united opposition from all left of center parties and factions.

CENTERFORSECURITYPOLICY: Introducing Colombias own Obama