The outer membrane is the dura mater, which forms the meningeal folds, such as falx cerebri and tentorium.

层的硬脑膜可以形成脑膜折叠结构，比如大脑镰和小脑幕。

The internal layer of the dura mater lies above the arachnoid mater and the two are separated by the subdural space.

硬脑膜的内层在蛛网膜之上，这两层中间的腔叫做硬膜下。

Dr. Osborne noted during the autopsy that there was a cut to Ellen's dura, which is the protective covering around the spinal cord.

奥斯本博士在尸检过程中指出，艾伦的硬脑膜——即包裹脊髓的保护层——有一处切口。

Once all the bleeding is stopped, we essentially then close the covering on the brain, which is called the dura, fix the bone flap back to the skull, then we close the scalp, then we get lunch.

一旦所有的出血都停止了，我们会闭大脑上的覆盖物，也就是所谓的硬脑膜，将骨瓣固定回头骨，我们闭头皮，去吃午饭。

These veins travel through the arachnoid mater, pass through the subdural space and penetrate the inner layer of the dura mater to drain into the dural venous sinuses located between the two layers of the dura mater.

这些静脉穿过蛛网膜，过硬膜下，穿过硬脑膜内层，使血液回流至两层硬脑膜中间的静脉窦中。