The answer is that only a small subset of the genes in a particular kind of cell are expressed, or turned on, at a given time.
答案是特定细胞中只有一小部分基因在特定的时间被表达或使用。
For example, being the best hotel chain, or making the best, the most user friendly, or the most reliable products in a particular field.
例如，成为最好的连锁酒店，或者在某一特定领域里制造最好的、对用户最友好的、最可靠的产品。
The technology is so fine-tuned then that even a non-sound, when carefully placed in a particular position, has been invested with a specific function.
这项技术是如此精细，以至于即使是一个无声的举动，小心翼翼地放置在特定位置时，它就已经被赋予了特定功能。
When we analyze pedodiversity within an area, we are measuring how much variability there is in soil properties and how many different types of soil there are in a particular area.
当我们分析某个地区内的土壤多样性时，我们是在测量土壤属性的可变性，以及在某个特定地区有多少不同的土壤类型。
The first and the third can be key factors in the structure of a biological community; that is, all the populations of organisms living together and potentially interacting in a particular area.
第一个和第三个可能是生物群落结构的关键因素；也就是说，所有的生物种群都生活在一起，并且它们可能在一个特定的区域内相互作用。
The tasks had to be performed in a particular sequence.
这些任务必须按一定次序去执行。
Students would be offered on-the-job training leading to the certification of their skill in a particular field.
学生将获得在职培训，他们也将因此得到在某一领域的技术合格证。
They'll have out half the goods in the shop, and want the only style you don't have left in a particular colour.
他们会试用商店里一半的商品，却只想要没有存货的那款颜色。
Karry said, "in a particular season I will think of you, such as spring, summer, autumn and winter."
卡里说：“在特定的季节我就会想你，比如春天、夏天、秋天和冬天。”
Graphics put the information in a particular order so that it's easy to understand when we take a quick look.
图像将信息按特定的顺序排列，这样当我们快速浏览时就容易理解了。
The formula for a well-made play required that the certain of these elements be included in a particular order.
佳构剧的构成准则要求一些要素要以特定的顺序来展开。
Having a strong point of view, signature style, or being a super-enthusiast in a particular field makes someone interesting.
有一个强烈的观点、标志性的风格，或者对某一特定领域充满热情，这些都能让人变得有趣。
The attributes chosen to be included in a particular miniature was often meant to communicate parents' hopes and dreams for their child.
人们选择把这些象征物纳入某幅微型作品中，通常是为了传达父母对孩子的期望。
In practice in Tokyo, because of the relative concentration of schools, there is some competition to get into the "better" school in a particular area.
在东京的惯例中，由于学校相对集中，在某个特定地区进入“更好”的学校存在一些竞争。
After an outbreak in a particular area, it is common to find that Acroporids have been selectively removed, leaving a mosaic of living and dead corals.
在某一特定地区爆发后，通常情况下鹿角珊瑚被选择性地移除，留下活珊瑚和死珊瑚的组合体。
The fishermen know the approximate time of year when they will be allowed to fish, but on any given day, one or more field biologists in a particular area can put a halt to fishing.
渔民们知道一年中允许捕捞的大概时间段，但是在某些日子，一个地区可能有一个或多个实地生物学家中止捕鱼活动。
Can be created and viewed in a particular database.
可以在数据库中创建和查看角色。
Or perhaps you need examples of XML in a particular format.
或者，也许需要特定格式的xml例子。
This configures the STS to issue SCTs in a particular manner.
这将配置STS以特殊方式发布sct。
Why is SAX used in a particular situation and not DOM (or vice versa)?
为什么在某种特定情形下使用SAX而不是DOM(或者相反)？
Rules differ, too, on what constitutes residency in a particular jurisdiction.
在某一特殊的管辖区，裁决依据构成居住权的条件而有很大不同。
Broadly speaking, a gifted child has special abilities in a particular area.
大致来说，天才儿童在某个特定领域有特别的能力。
Roles represent temporary affiliations that a type might have in a particular context.
角色表示一种类型在一个特殊的上下文中可能拥有的临时从属关系。
This happens for searches that indicate a strong user interest in a particular domain.
这将出现在那些用户关注程度大的域名搜索结果中。
Culture can take behaviour out of the general moral context and define it in a particular way.
文化可以使行为脱离其一半的道德语境，并以特定的方式对其定义。
An immutable copy of a component in a particular workspace or stream is called a baseline.
特定工作区或流中的某个组件的不可变副本称为基准。
It may take many years of dedicated effort to become an expert in a particular discipline.
要想成为某个领域的专家，可能要花费数年的努力才能达成。
Objects stored in the cache in a particular instance are not affected by other cache instances.
特定实例的缓存中存储的对象不会受到其他缓存实例的影响。
It might mean getting recognition in a particular field - maybe as an artist or a musician.
它可能指像一个画家或音乐家那样得到他们从事的那个领域的认同。
It might mean getting recognition in a particular field - maybe as an artist or a musician.
它可能指像一个画家或音乐家那样得到他们从事的那个领域的认同。
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