centring
['sentrɪŋ]
n.
对准中心;
（对准）中心调整;
定（中）心;
打中心孔;
v.
置于中央( centre的现在分词 );
集中;
把…当作中心;
（使）成为中心;
例句:
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The centring of the pages, the underlying layout grid, and the pan-BBC masthead are examples of this.
来自BBC
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Centring on this focal point, the full text divides into three parts.
围绕此重点, 全文分三个部分.
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Strategically, the Eighth Route Army is centring them on Shansi.
在战略上, 八路军正以山西为中心进行战争.
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Introduced in the paper is a newly developed centring - roll system used on rotary pipe mill.
介绍了一种用于斜轧钢管生产的新式定心辊装置.
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The necessity of well centring the object glass of a large telescope.
来自C. Hutton