I could see a thick layer of dust on the stairs.
我能看见楼梯上厚厚的一层灰尘。
To see the glue layer in action, I will show some example with screenshots.
为了说明粘合层怎样发挥作用，我会列举几个截屏来演示。
Behind the front end is a layer of middleware that I call the storage logic.
在前端后面是一个中间件层，我将它称作存储逻辑。
The network layer displays times spent waiting on network I/O.
网络层显示了花费在等待网络I/O上的时间。
For this particular layer mask I don't want to create a hard edge so we are going to use the brush tool to manually create our mask.
对于这个层蒙版，我不想有硬边。所以我们选画笔工具手工建立蒙版。
The next layer is where I configure my memcached instances — between the application servers and the database servers.
再下面一层是配置memcached实例的地方 — 即应用服务器与数据库服务器之间。
I choose to wrap the DAO in an interface, so I can switch my data access layer to use different persistence strategies.
我选择将这个dao封装在一个接口中，这样我就能够切换数据访问层来使用不同的持久性策略。
The CDA Viewer application that I built follows the same pattern, although I broke my transformation layer into three files for readability (see Download).
我构建的CDAViewer应用程序遵循相同的模式，但是为了可读性，我将转换层拆分为三个文件(参见下载部分)。
I completely isolate the code under test to the controller layer.
要测试的代码被完全限制在控制层。
I would like to see a hardware abstraction layer installed similar to what Fedora USES for hardware recognition.
我希望能够有一个类似于Fedora所用的那种进行硬件识别的硬件抽象层。
When I develop software, I try to flesh out the data layer of an application before doing anything else: it is unusual for a useful application not to depend on some sort of data.
当我开发软件时，首先要做的就是充实应用程序的数据层：如果一个有用的应用程序不依靠数据，未免太不正常。
If you've not seen Active Record — the underlying persistence layer in Rails — before, I recommend that you take a look first at this earlier Rails article in the Crossing borders series.
如果以前没有学习过活动记录——Rails底层的持久性层，我建议您先阅读跨越边界系列中以前的这篇Rails文章。
In fact, I think it would be a clearly bad thing if any one language won at any layer.
事实上，我认为倘若有一种语言在任何一层上战胜了其他语言，都肯定是一件坏事情。
I hope you come away with the following point: NHibernate will dramatically simplify the persistence layer of your application.
NHibernate将会大大简化你程序中的持久化代码层，我希望你可以带着这个观点离开。
I am making the assumption here that the read operation (as an entry point to the API layer) is not in turn invoking write operations on the database.
我在此处假设读操作(作为api层的入口点)不会对数据库调用写操作。
Part 3 of this series focuses on the application layer as you move on to file systems, using various commands to monitor and tune your file systems and disk I/O subsystems.
本系列文章的第 3部分将在您继续研究文件系统的同时，重点关注于应用程序层，并使用各种命令以监视和优化您的文件系统和磁盘I/O 子系统。
Notice how loosely I placed that first layer of color.
看我上的第一层颜色只是大致的。
So now in the first layer of the dream, I can impersonate Browning.
那么在第一层梦境我就能假扮布朗宁了。
This step is optional, but I created a layer and have applied a linear gradient from top to bottom to increase the contrast at the bottom of the PIC.
这一步是可选的，但我还是建了一层来应用一个从上到下的渐变来增强图像底部的对比度。
Being on a separate layer meant I could add all sorts of details behind him.
使用分离的图层，意味着我能够将所有种类的细节放在他身后。
I need you to copy and paste the following onto a new layer and assign it 25% Opacity.
我需要你复制粘贴下图所示的图形到一个新的图层，并分配其25%的不透明度。
We know that the layering of the PC era led to huge innovation at each layer in the stack and I expect the same to continue to emerge on the Internet.
我们知道个人计算机时代的分层最终导致了各个层面的巨大变革，所以我期待同样的变革会继续出现在互联网上。
I will try to add links to the different areas of this site showing how I achieved each layer.
我会尝试在平面图增加链接到不同的区域，来展示我是怎样完成每一个图层的。
Then, I filled up the shelves with all kinds of paint and painting tools. These are the elements I used to give some color on this second composition layer.
然后，我将这些架子上摆上不同的颜料和绘画工具。这些就是我在第二层组合图层中添加的一些色彩元素。
Then I layer the picture and apply solid colors. A normal filling is enough.
之后就分图层上角色的固有色，平铺就好了。
To add fog, I first create a new layer and move it to the top of the layers palette.
为了增加雾气效果，首先，我创建了一个新图层，把它移至图层面板的顶端。
I renamed the layer to "BG" and then pressed OK.
我重命名该图层为BG，并按确定。
I also duplicated the dark paths layer and applied a Gaussian Blur filter.
我又复制黑色路径图层并使用了一个高斯模糊。
For the wheat layer I used the same OVERLAY blending mode as I used for the windmill.
对于小麦图层，我使用了与风车相同的Overlay混合方式。
I also placed a base layer of wild grass to help define the ground plane.
我还新建了一个野草的图层来帮助地面部分的表达。
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