They don't know or care about how the TV works or what components exist inside, only that they can interact with it via its inputs (remote control, power plug, etc.) and outputs (screen and speakers).
他们不知道也不关心电视是如何工作的、里面都存在那些组成要素，他们所做的只是通过输入（遥控器、电源等）和输出（屏幕和扬声器）来同电视进行互动。
Singletons are a useful way to control access to a class, making sure that only one instance can exist.
单例模式是一种有用的控制类访问的途径，他能保证只有一个类实例存在。
Researchers can only question the firms that exist; they cannot talk to all the ones that might exist, if India’s labour laws permitted them to prosper.
研究者只能询问现存的公司，他们不能询问所有可能存在的公司，印度的劳工法是否可以促使公司的繁荣。
This demonstrates that you can pull out only those columns of interest, and you can also extract them from the table in a different order than they exist within the database.
这说明您可以只提取感兴趣的三个列，还可以使用与数据库中的顺序不同的顺序从表中提取它们。
Geometry dictates that only two -, three -, four - and six-fold rotational symmetry can exist.
几何规定旋转对称只能以二次，三次，四次和六次存在。
And I believe that the society can remain good only as long as we are willing to fight for it -and to fight against whatever imperfections may exist.
我相信只要我们愿意为之奋斗，愿意与所存在的缺陷抗争到底，这个社会就能永远美好。
That is impossible. Geometry dictates that only two-, three-, four- and sixfold rotational symmetry can exist.
然而几何学告诉我们，只有二次、三次、四次和六次的旋转对称是能够存在的形式。
And so there are only two kinds of waves that can exist on this violin string, standing or traveling.
由于这只有两种波，可以存在在这条弦上，驻波或行波。
The cramfs file system is a compressed read-only Linux file system that can exist within flash devices.
cramfs文件系统是一种可用于flash设备的压缩式Linux只读文件系统。
For example, in Figure 3 the solid diamond indicates that the relationship is a composition — in other words, that instances of the address class can only exist within the context of a person class.
比如，图3中的实心菱形表示这里是组合关系——换句话说，address类的实例只能存在于person类的上下文中。
Today, the planet's low temperature and thin atmosphere means that water can only exist as solid ice or gaseous vapor — liquid water would either freeze or boil.
现在，火星的低温和稀薄的大气意味着水分只能以固体或水蒸气的形式存在-液态水要么凝固要么沸腾。
But if present only exist in order to become the past, how can we say that does exist at all?
但如果现在仅为成为过去而存在，我们怎能说它确实存在过？
They will be befitting of the higher dimensions that you are entering, where only Love and Light can exist.
你们进入的更高维度将是合适的，只有光与爱的存在。
Photographs depict objective realities that already exist, though only the camera can disclose them.
照片描绘业已存在的客观现实，不过只有造相机才能揭示这种客观现实。
And I believe that the society can remain good only as long as we are willing to fight for it - and to fight against whatever imperfections may exist.
我相信只要我们愿意为之奋斗，愿意与所存在的缺陷抗争到底，这个社会就能永远美好。
It's a pity that it can only exist in the dreams of city people like us.
可惜，它只能存在于我们都市人的梦中了。
You can introduce services that only make sense to exist after the visual tree from templates is complete.
可以引入仅当模板中的可视化树完整后才有存在意义的服务。
The second chapter discusses that the incomplete crime patterns can only exist in felony.
第二章：犯罪未完成形态只存在于“重罪”之中。
In another embodiment, graphics local memory 114 does not exist, thus system memory 108 channels 1 and 2 are the only memory storage that graphics processor 112 can utilize.
在另一个实施例中，不存在图形本地存储器114，因此，系统存储器108的通道1和2是图形处理器112可使用的唯一存储器存储。
The other one can not only generates secret session key for one group but also generates keys for subgroups that exist in this group.
此时谈判的每一方都是一个组，因此需要为多个组一次协商出所有的组密钥。
If things only have the meaning we give them (and they do), then the only place that problems can exist is in our head.
如果事情仅仅具有我们赋予它们的意义(事实也是如此)，那么问题存在的唯一地方就是我们的头脑。
Most of the Lishen's poems have been lost, in the works that only exist, we can classify the poem creation into two stages, i. e. , early and late stages.
李绅的不少诗歌都散佚了，从仅有的作品中，可将其诗歌创作分为前后两个时期。
Researchers can only question the firms that exist; they cannot talk to all the ones that might exist, if India's labour laws permitted them to prosper.
研究者只能询问现存的公司，他们不能询问所有可能存在的公司，印度的劳工法是否可以促使公司的繁荣。
Thanks to all the artists and the art collectors that cooperate with us, thanks to all the people that support Chinese art Now. We can exist only because there is you.
感谢与我们合作的艺术家和收藏家，感谢所有支持中国现在艺术的人，因为有你们，才有我们。
Thanks to all the artists and the art collectors that cooperate with us, thanks to all the people that support Chinese art Now. We can exist only because there is you.
感谢与我们合作的艺术家和收藏家，感谢所有支持中国现在艺术的人，因为有你们，才有我们。
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