There are at least two classes of these receptors, which have been designated A1 and A2.
这些受体至少有两类，分别被命名为A1和A2。
The solar system also has two analogous classes of objects, smaller than planets—namely, asteroids and comets.
太阳系也有两类类似的物体，比行星还小——即小行星和彗星。
Just an introduction to the classes of potential foreign invaders that our immune system tries to defend us against.
这只是对我们的免疫系统试图防御的潜在外来入侵者的分类介绍。
Later, I developed a broader theory of what separates the two general classes of learners—helpless versus mastery-oriented.
后来，我提出了一个更广泛的理论来区分这两类常见的学习者——无助型和掌控型。
For the chattering classes of Washington, the selection of Negroponte came as a surprise.
对于华盛顿那些喋喋不休的阶层来说，内格罗蓬特的当选是一个意外。
Later, I developed a broader theory of what separates the two general classes of learners-helpless versus mastery-oriented.
后来，我提出了一个更广泛的理论，来区分无助型学习者和掌控型学习者。
Later, I developed a broader theory of what separates the two general classes of learners helpless versus mastery oriented.
后来，我发展了一个更广泛的理论来区分无助型学习者和掌握型学习者。
Every one of the participants, ranging from an Illinois state senator to Massachusetts minister, tested positive for all three classes of pollutants.
从伊利诺伊州参议员到马萨诸塞州的部长，所有的参与者被检测出的三种污染物都呈阳性。
Every one of the participants, ranging from an Illinois state senator to a Massachusetts minister, tested positive for all three classes of pollutants.
从伊利诺伊州参议员到马萨诸塞州的部长，所有的参与者都检测出三种污染物呈阳性。
The Ergative Hypothesis distinguishes one of the classes of intransitive verbs—unergative verbs (UV).
格律性假设区分了一类不及物动词的——非作格动词（UV）。
I've mixed among all classes of people.
我与各阶层的人都有过交往。
Seeing what classes of a plug-in were loaded.
查看插件的哪些类被加载。
Personalization of content to classes of users.
基于用户的类别进行内容的个性化。
There are really two classes of methods represented.
实际上有两类方法。
The two main classes of petrochemicals are olefins and aromatics.
石化的两类主要产品是烯烃和芳烃。
Automation and outsourcing have claimed whole classes of jobs.
自动化和外包已经渗透到各个阶层的岗位中。
They certainly don't for certain classes of non-production environments.
对于非生产环境来说，他们并 不需要有很高等级的服务。
The magistrates' court also deal with certain limited classes of civil cases.
治安法庭也审理某些有限类型的民事案件。
The magistrates' court also deal with certain limited classes of civil cases.
治安法庭也审理某些有限类型的民事案件。
The first three classes constitute the base classes of the class hierarchy.
前三个类构成了类层次结构的基类。
In this case, AIX scans both classes of pages and evicts the least recently used pages.
在这种情况下，AIX将扫描两类分页，并且回收近来较少使用的分页。
This sets the stage for long, fierce battles between different classes of creditor.
因此不同阵营的债权人之间，会进行长期而激烈的角力。
But the rules are based on classes of distribution that don't always hold in our world.
但规则是建立在分布的等级之上的，而这些分布并不总存在于这个世界里。
Our system allows companies to issue different classes of stock with different voting rights.
我们的体系允许公司发级别不同、权益不同的股票。
Molecular manufacturing, by contrast, will bring unfamiliar risks and new classes of problems.
相比之下，分子制造将带来不熟悉的风险和新类型的问题。
In either case, the key is to design in the flexibility to easily implement classes of service.
在任一种情况下，关键都在于灵活设计以轻松实现分类服务。
Variations in SCN9A may also explain why some patients prefer different classes of painkillers.
不同的SCN9A可能也阐明了为什么同样的患者会依赖于不同程度的止痛剂。
Classifying users into roles can segment the responsibility of tasks for different classes of users.
将用户分类成角色就可以为不同的用户类分配任务责任。
Classifying users into roles can segment the responsibility of tasks for different classes of users.
将用户分类成角色就可以为不同的用户类分配任务责任。
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