The gasket had a center cut-out and six holes along the edge. The inside edge of the cut-out, along with one of the holes, was lined with a bead of rubber.

垫圈当中挖空，边缘有六个小孔，其中一个孔靠近当中挖空部分的边缘嵌着一颗橡胶珠。

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The agriculture sector must be placed at the center of development to cut in half extreme poverty and hunger by 2015.

必须把农业部门放在发展的中心，才能在2015年把极度贫困和饥饿人口减少一半。

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We cut out holes in the center of larger trees, to make little huts, and built a large one out of large branches and twigs, upon a tree that had fallen down and was resting on another.

我们在那些较大的树的树心上砍出了一些洞作为小屋，并用大树枝和嫩枝，在一棵树上建了一间大屋，这棵树已经倒了下来，压在另一棵树上。 这些劳作很艰苦。

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This is a center that cut across all of the MIT's Schools and departments, and tries to undertake innovative research in how different technologies, computer technologies, and communicational technologies can be used in educational settings.

这个中心的研究贯穿于,所有麻省理工的院系,研究不同的技术，计算机技术,通讯技术等,如何能够被不同地应用于,教育领域。

麻省理工公开课 - 媒体、教育、市场课程节选

Not all slices are created equal the ends rarely get any filling, while the center cut is a proverbial jackpot of yum.

WSJ: Delicious Babka With Nutella

Place the center cut back into the braising liquid and continue to cook until the meat can be easily shredded with a fork.

NPR: Salpicon Recipe

At Boston Medical Center he helped cut the number of rescheduled surgeries from 700 to 7 in less than a year.

FORBES: Special Surgery