The mandrel must be mounted between centers and a drive plate and lathe dog must be used.

必须将心轴锚定在中心点和驱动板之间的位置，并且必须使用车床轧头。

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Let's look at the most obvious issue first: network speed and reliability between the data centers.

首先让我们看一下最明显的问题：数据中心之间的网速和可靠性。

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The group recently announced seven new partnerships between centers in Africa and the United States.

VOA: special.2009.02.10

The U.S.Centers for Disease Control says the percentage of overweight Americans increased 60 percent between 1991 and 2000.

VOA: standard.2010.03.30

I think the notion is that there will be some link between the businesses and research centers that are created and the school."

VOA: standard.2010.06.18

For example, the distance between the centers of two black holes in galaxy clusters distant from each other and the gap between cell walls in a living organism differ on a vast scale, despite their sharing of common structures at the atomic level.

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Legal battles between research centers that develop technology and companies that license it occur with some regularity in biotech.

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What is the time it takes part of a problem to move over a fiber optic connection between data centers?

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