他说，与传统的课堂系统相比，这项技术有明显的优势，因为在传统的课堂系统中，学生往往要等上几天或几周才能拿到成绩。
He said the technology would offer distinct advantages over the traditional classroom system, where students often wait days or weeks for grades.
这些状态的变化是以激发系统作为媒介完成的，而所谓激发系统，是指从各个感觉系统汇聚到位于脑干中整合中心的一个网络。
The range through these states is mediated by the arousal system, a network of tracts converging from sensory systems to integrating centers in the brain stem.
菠萝蜜中的过敏原不会使免疫系统敏感，但是一旦桦树花粉刺激了免疫系统，免疫系统也会对菠萝蜜有反应。
The allergen in jackfruit does not sensitize the immune system, but once birch pollen has done so, the immune system may react to jackfruit too.
与压缩的垂直系统相比，在这个系统中，是商品而不是人在群岛上流通。
In contrast to the compressed verticality system, in this system, commodities rather than people circulated through the archipelago.
例如，公元前200年的隶书系统中的“人”字与20世纪的简体系统中的“人”字相似。
For example, the character that means man in the Lishu system from 200 BC is similar to the character that means man from the Jiantizi, or modern simplified system, of the twentieth century.
模型也可以作为实现物理系统的先驱被开发，或者模型可以根据一个已存在的系统或者开发中的系统被产生作为理解系统行为的帮助手段。
The models may be developed as a precursor to implementing the physical system, or they may be derived from an existing system or a system in development as an aid to understanding its behavior.
比较典型的是，这样的IT系统需要表达这个系统中片段之间不同的关系。
Typically, such IT systems require different relationships to be expressed between the pieces within the system.
在所恢复的遗留系统的抽象结构中(与系统用例相关联的分析模型)，我们现在必须找到实现它的信息系统的组件。
From the recovered abstract structure of the legacy system (the Analysis Model associated to the system Use Cases), we must now find the components of the information system that implement it.
与其他许多系统相同，Linux系统中的目录也包含其他目录，即子目录。
As with many other systems, directories on a Linux system may contain other directories called subdirectories.
系统级别：模块将影响整个系统，此模块中的处理程序将应用于传入系统的所有消息。
System level: the module will affect the entire system and the handlers in this module will work on all messages that come into the system.
实现这些增强功能，即将其应用到您的系统环境，可以在您的系统中优化内存性能。
Implementation of these enhancements, as they apply to your systems environment, can optimize memory performance on your box.
让我们从系统的高度来看一下系统中的硬件是如何配置和分配的。
Let's take a system-wide look at how the hardware on the system is configured and allocated.
如果一个分区中的操作系统出了故障，在其他分区中运行的操作系统不会受到任何影响。
If the operating system fails in one partition, there is no impact on the operating system running in other partitions.
当VCS的进程（HAD）被杀死，其他集群中的系统通过将所有重启系统中的服务组标记为持续联线来实现自动禁用。
When the VCS process (HAD) is killed, other systems in the cluster mark all service groups capable of going online on the rebooted system as autodisabled.
在每个系统中，他们通常先找出跨系统的接口。
Within each system, they typically identified first the cross-system interfaces.
在事件驱动的系统中，系统将在公用通道上生成和发布出去，以供相关订阅者接收和作出反应。
In an event-driven system, events are produced and published out on a common channel for interested subscribers to receive and react.
此外，发起那些方法的业务操作者将追溯到相应的位于系统用例模型中的系统参与者(用户角色)。
Moreover the business workers that initiate those methods are to be traced to corresponding system actors (User Roles) living in the system Use Case model.
目前这个数据驻留在两个系统中，每个系统的接口和数据格式都不同。
Currently this data resides in two systems, each with a different interface and data format.
检查系统时钟；更重要的是，要检查编译树中文件的日期、系统中其他文件的日期以及系统的时钟。
Check your clock; more importantly, look at the dates of files in your build tree, and other files on your system, and your clock.
不幸的是，这使得从“用户模型”追溯到系统模型中的系统参与者是困难的。
Unfortunately, this makes it difficult to trace such "user models" to the System Actors in the System model.
这些服务可以存在于您的系统中或其他组织的系统中。
These services can exist in your systems or in other organizations' systems.
即，它包含一个带有您程序全部相关文件的文件系统，这些文件在安装时会被放到您系统的文件系统中适当的位置。
That is, it contains a filesystem with all the relevant files for your program that, when installed, will be placed in the appropriate spots in your system's filesystem.
一个运行的SOA系统的关键在于对系统中的各项业务服务进行适当的概念化和标识。
Key to a working SOA system is appropriate conceptualization and identification of the business services that will make up the system.
类图建模这个静态系统结构：此项目包括系统以及包含在系统中的项目之间的关系。
Class diagrams model the static structure of a system: the objects that comprise the system, as well as the relationships among the objects within the system.
由于在逆向工程项目中，这些规范应用于再造工程的系统中，所以实际的系统必须与这些规范相比较。
Since, in a reverse-engineering project, these specifications apply to the reengineered system, the actual system must be compared to these specifications.
要表达一个典型的IT系统需要表达出系统中不同部件之间的相互关系。
Expressing a typical IT system requires relationships to be expressed between the different parts of the system.
DB 2优化器然后查询存储在DB 2系统目录中的系统信息和统计信息，以确定完成满足SQL请求所必需的任务的最佳方法。
The DB2 optimizer then queries system information and statistics stored in the DB2 system catalog to determine the best method of accomplishing the tasks necessary to satisfy the SQL request.
在微生物做了大多数工作的同时，系统中的植物提高了系统的效率。
While bacteria do most of the work, incorporating plants improves the efficiency of the system.
在当今的复杂系统堆栈中，性能问题可能发生在系统的多个不同部分。
In today's complex system stacks, performance issues may occur in many different parts of the system.
中间件创建一个灵活的系统，在这个系统中，底层的RDBM可以无缝地改变，而且允许用集群替换单一的数据库服务器。
Middleware creates a flexible system where the underlying RDBM may be seamlessly changed, and additionally allows a single database server to be replaced with a cluster of machines.
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