腹股沟区有三个重要的解剖结构即腹横筋膜、髂耻束、耻骨肌孔与腹股沟疝分型有密切关系。

There was relationship between the grouping of inguinal hernia and three important anatomic structure(transverse fascia, iliopubic tract and myopectineal orifice).

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通过将石墨烯薄片放置在一个氮化硅薄膜上，并用电子束在石墨烯上打出纳米尺度的孔，他们制作出了一系列从5到25nm直径的孔。

They create a series of pores ranging from 5 to 25 nm in diameter by placing flakes of graphene over a silicon nitride membrane and drilling nanosized holes in the graphene using an electron beam.

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最后，采用各项异性的离子束(IBM)加工技术可以通过掩膜来蚀刻孔阵，以制成纳米多孔金属材料。

Last, a technique known as anisotropic ion beam milling (IBM) is used to etch through the mask to make an array of holes, creating the nanoporous metal.

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