The reason for the division of Class E and Class A airspace stems from the type of planes operating in them.
E类和A 类空域的划分取决于在这两类空域飞行的飞机类型。
One 2013 study of college students found that 80% of students use their phones or laptops during class, with the average student checking their digital device 11 times in a typical class.
2013年的一项关于大学生的研究发现，有80%的学生在课上使用手机或笔记本电脑，在一堂平常的课上，平均每个学生查看数码设备的次数高达11次。
The difference between Class E and A airspace is that in Class A, all operations are IFR, and pilots must be instrument-rated, that is, skilled and licensed in aircraft instrumentation.
E级和A 级空域的区别在于，在 A 级空域，所有操作都需遵照仪表飞行规则，飞行员必须要有仪表等级，也就是说，要有操作航空仪表方面的技术和执照。
David Eisenbach, who teaches a popular class on U.S.?presidents?at?Columbia,?prefers?the?in-class?variety.
戴维·艾森巴赫（David Eisenbach）在哥伦比亚大学教授一门关于美国总统的热门课程，他更注重课堂的多样性。
Ideas about social class—whether a person is "working-class" or "middle-class"—are one area in which changes have been extremely slow.
关于社会阶级的观念，判断一个人是“工人阶级”还是“中产阶级”，这是一个极其缓慢的变化过程。
David Eisenbach, who teaches a popular class on U.S. presidents at Columbia, prefers the in-class variety.
戴维·艾森巴赫在哥伦比亚大学教授一门关于美国总统的热门课程，他更偏爱课上考试。
A recent wide-ranging society of public opinion found 90 percent of people still placing themselves in particular class; 73 percent agreed that class was still a vital part of British society; and 52 percent thought there were still sharp class differences.
最近的一项广泛的民意调查发现，90%的受调查者仍然把自己归入特定的阶层；73%的人认为阶级仍然是英国社会的重要组成部分;52%的人认为阶级差异仍然很大。
In order to pass the class, among other criteria, we had to write a paper on how we plan to apply what we would learn in class to our future professions and, eventually, to our lives.
为了通过这门课，除其他标准外，我们还必须写一篇论文，来说明我们计划如何将课上所学应用于未来的职业，并最终运用于生活中。
I prefer specification of the runtime behavior of a class within the class itself, keeping all the information about a class in one place.
我更喜欢在类的内部说明类的运行时行为，将有关类的所有信息集中保存在一个地方。
Basically, one small helper class is added for each class that's included in any of the bindings, along with a separate class per binding.
基本上会为任何绑定中包含的每个类添加一个小型助手类，并为每个绑定添加一个单独的类。
By defining a CSS class in a linked file and applying the class in HTML to an element, you can further decouple the presentation and content.
通过在一个链接的文件中定义css类并将该html格式的类应用到元素上，可以进一步削弱表示方法与内容之间的关系。
At a minimum, two classes are required to use the resource environment provider in an application: a factory class, and a class that provides custom properties.
至少需要以下两个类才能在应用程序中使用资源环境提供程序：工厂类和提供自定义属性的类。
A nested class make sense when you have enough related functionality to lump together in a class, but the functionality is only ever going to be used by its "outer" class.
当你有足够多的功能需要归并到一个类里，并且这个类在仅会被外层类所使用时，一个嵌套类就非常有用。
The idea behind class wrapping is that a target class can be wrapped in a layer of instrumenting code that retains the same external behavior as the class that's wrapped.
类包装背后的理念是：目标类可以包装在一层插装代码中，后者具有与被包装的类相同的外部行为。
Because the Listing 2 class is a parameterized type, the class signature needs to be present in the binary class representation.
由于清单2中的类为参数化类型，所以类签名需要以二进制类形式表示。
In a class that meets 35 times in a semester, each class has about 3 percent of the content.
如果一门课一学期有35次课，那么每次课都会讲授3%的内容。
An annotation applied on a class is applicable to all the methods in the class.
应用于类的注释适用于类中的所有方法。
Remote services are implemented in a server-side class that extends GWT's RemoteServiceServlet class.
在一个扩展GWTRemoteServiceServlet类的服务器端类中实现远程服务。
The code in Listing 1 is a class that extends the Sprite class.
清单1中的代码是一个扩展了 Sprite类的类。
In the compilation of class D or in the compilation of a client class that included the meddlesome expression new D().nest(1000)?
在类D的编译过程中还是在包含不相干表达式new D().nest(1000) 的客户机类的编译过程中呢？
In this case, the class attribute contains a fully qualified class path for the rule.
在这个例子中，class属性包含一个用于规则的完整的类路径。
Class: a class in the UML model represents a database table. For each class in the model, the following are created.
类：uml模型中的一个类代表一个数据库表。
With this new declarative style, SQLAlchemy is able to create a table in a database, create a class, and the mapping between the class and the table in one spot.
通过这种新的声明样式，SQLAlchemy能够在一步中创建一个数据库表、创建一个类以及类与表之间的映射。
The primary constructor in a derived class must invoke one of the parent class constructors, either the primary constructor or an auxiliary constructor.
子类的主构造函数必须调用父类的一个构造函数，无论是主构造函数或者是辅助构造函数。
Participation includes informal class discussion of the readings and films, in-class presentations, and a formal class debate.
参与包括参考读本和电影的非正式课堂讨论、上台报告，以及正式的课堂辩论。
Make an inner class in the parent class, which is a test case.
在父类中建立一个内部类，这个内部类是个测试用例。
Once you have the object represented in a class, you next need a class to manage it.
在一个类中表示对象后，接着还需要一个类来管理该对象。
And how do I distinguish between operations and classes, so that I know this operation belongs in this class, but that other operation should be in a different class?
如何区分操作和类，以明确这个操作是属于这个类，但是其它的操作要属于同一个类，还是其它的类？
The store is initialized in the plug-in class, a class that initializes objects global to the plug-in.
该存储在插件类中被初始化，这个类初始化对该插件而言是全局的对象。
Now, suppose you write a new class and extend the in-progress class. Easy enough, right?
现在，假设您要编写一个新类，扩展那个还在开发之中的类，也不难，是不是？
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