Other options to restore the frescoes would have required using chemicals to remove the unwanted layer or using physical means to scrape it off.
其他修复壁画的方法可能需要使用化学物质来去除不需要的层，或者使用物理方法将其刮掉。
A hypervisor is a software virtualization program that provides a layer of abstraction between operating systems and physical resources on a machine.
管理程序指的是一种软件虚拟化程序，它在操作系统和机器物理资源之间提供了一个抽象层。
So while the object names are migrating up into the logical layer, the queue manager, channels, processes, and other system names are being driven down closer to the physical infrastructure layer.
因此，虽然对象名称正在向上迁移到逻辑层，但是队列管理器、通道、进程和其他系统名称正在向下转移，更接近物理基础结构层。
The various network device drivers run at the interface layer, which receives and transmits data from and to the physical link.
各种网络设备驱动程序在接口层运行，该层从物理链路接收数据，并向物理链路传输数据。
Controlling routing at the physical network layer embeds policy into topology.
在物理网络层控制路由需要将策略嵌入到拓扑中。
Hypervisors provide a scheduling and mediation layer between guests residing on the server and the server's physical resources, as shown in Figure 1.
管理程序通常在驻留在服务器上的客户和服务器物理资源之间提供一个调度和调节层。如图1所示。
For the purposes of this article, we'll focus on server virtualization, where a hypervisor layer exists, supporting the execution of multiple virtual machines on one physical server.
对于本文，我们的重点是服务器虚拟化；在服务器虚拟化中存在一个管理程序层，用于支持在单个物理服务器上运行的多个虚拟机的执行。
When devices are emulated, such as virtual network adapters, the emulation provides a layer to abstract away the physical hardware.
当设备被模拟(比如虚拟网络适配器)时，模拟提供一个抽象层以抽象物理硬件。
The data manipulation services (in the lower layer) extract data from the physical repositories, and semantic services turn this data into information.
数据操作服务(在下方的层中)从物理存储库中提取数据，并且语义服务将该数据转换为信息。
Information management in SOA, particularly EII, emphasizes separation of concerns between the services layer and the physical implementation of the data.
SOA中的信息管理，尤其是EII，强调将服务层与数据的物理实现之间的关系分离。
Peer-to-peer systems are often implemented as an abstract overlay network built at the application layer on top of the native or physical network.
对等系统常常实现为一个抽象的覆盖网络，构建于原生或物理网络之上的应用程序层上。
As the bottom layer of the ODFDOM hierarchical structure, it provides direct access to the physical storage in the ODF package, such as XML streams, pictures, and embedded objects.
它是ODFDOM层次化结构中最低的一层，它提供对odfdom包中的物理存储的直接访问，比如xml流、图像和嵌入的对象。
This layer provides the ability to execute multiple operating systems (and their applications) simultaneously on a single physical machine.
这个层提供了同时在一个单一物理机器上执行多个操作系统(及其应用程序)的能力。
But rather than force all of the VM's networking to the physical layer of the platform, local communication could instead be virtualized itself.
但我们不需要把所有VM的联网都强加到这个平台的物理层上，本地通信可自行被虚拟化。
Understanding that it sits between the application layer and the physical layer should help you understand why it is arguably the most important of all the layers.
了解它位于应用程序层和物理层之间，应该可以帮助您理解它为什么很可能是所有层中最重要的一层。
In DB2, a table space is the logical object used as a layer between logical tables and physical containers.
在DB 2中，表空间是逻辑对象，作为逻辑表和物理容器之间的一层。
Each layer USES the layers beneath it, so the network layer does not need to worry about how each hop on the network USES the physical and data link layers and so forth.
每一层都使用它下面的层，因此网络层不必担心网络上的每次跳转如何使用物理和数据链接等问题。
When first setting up your systems, start from the bottom (the physical layer) as you configure your disk, the device layer, its logical volumes, file systems, and the files and application.
在第一次设置系统时，对于磁盘的配置，可以从最底层(物理层)开始，然后是设备层、逻辑卷、文件系统、文件和应用程序。
Even your physical volumes themselves are part of the logical layer, as the physical layer only encompasses the actual disks, device drivers, and any arrays that you might have already configured.
甚至物理卷本身也是逻辑层的一部分，因为物理层仅包含实际的磁盘、设备驱动程序和任何可能配置的阵列。
The services layer provides a service as a single point of access and can help the gradual physical consolidation of the implementers of that service over time.
服务层以单一访问点的形式提供服务，并且可以帮助逐步对服务的实现者进行物理合并。
A forwarding layer maps ranges of source IDs to physical databases, and replication is handled by building a tree of such tables under the same forwarding address.
该层将一段源id映射到物理数据库，对于同一个物理地址的表，通过建立树来处理。
The insulation layer is extremely important to SOA because it allows transparency of database vendor products, OS platforms, information location, data format, and a physical data model.
这种隔离层对于SOA来说非常重要，这是因为它使得数据库厂商的产品、OS平台、信息位置、数据格式以及物理数据模型透明化。
The link layer refers to the device drivers providing access to the physical layer, which could be numerous mediums, such as serial links or Ethernet devices.
链路层是指提供对物理层访问的设备驱动程序，这可以是各种介质，例如串口链路或以太网设备。
This physical I/O channel configuration make multipath SAN possible at the physical layer.
这个物理I/O通道配置在物理水平让多路径 SAN成为可能。
This caching layer optimizes access to the physical devices by keeping data around for a short time (or speculatively read ahead so that the data is available when needed).
这个缓存层通过将数据保留一段时间(或者随即预先读取数据以便在需要是就可用)优化了对物理设备的访问。
Infrastructure Layer - physical hardware, network and operating systems.
基础架构层——物理硬件、网络和操作系统。
Logical volume management is a disk abstraction layer that allows you to group physical disks into a single entity called a volume group.
逻辑卷管理是一个磁盘抽象层，它可以将多个物理磁盘分组成称为卷组(volumegroup)的单一实体。
The link layer provides the physical interface to the communication medium (such as an Ethernet device).
链路层(link layer)提供了通信介质的物理接口(例如以太网设备)。
NuCrypt's proprietary "AlphaEta" quantum-noise randomized, physical-layer encryption technology represents a new paradigm in ultra-secure, high data-rate optical communications.
NuCrypt公司专有的“AlphaEta”量子噪声随机物理层加密技术代表了超安全高数据速率光通信的新模式。
In this example, you changed the assumption and practice of implementing message routing at the physical layer and moved it up into a logical layer where it is managed by the cluster.
在本文的示例中，您更改了在物理层实现消息路由的假设和做法，并将其向上移动到了逻辑层中，并在那里由集群进行管理。
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