Because the number of possible topics is practically limitless, we focus on a sample of the most interesting and useful applications and tools and explain the basic principles of technology.
因为可能的主题在数量上几乎是无限的，所以我们重点关注最有趣和最有用的应用程序和工具的一个示例，并解释技术的基本原理。
"That it is practically impossible to avoid coming into contact with them," says Frederick vom Saal, a biologist at the University of Missouri.
“避免与它们接触是基本不可能的。”密苏里大学的生物学家FrederickvomSaal说。
At distances greater than 10 femtometers, the strong force is practically unobservable.
在大于10毫微微米的距离处，几乎看不到强力。
It is practically wilderness area that we all can enjoy without having to walk for hours.
这实际上是荒野地区，我们都可以享受，而不必走几个小时。
If I can only find a form by asking for it on a forum, the form is practically useless to me.
如果我只能通过到论坛中提问才能找到某个表单，那它对我来说几乎毫无用处。
The nations of the civilized world (China is practically the only exception) relate their moneys to gold.
而文明国家纷纷将货币与黄金挂钩（实际上，只有中国是个例外）。
In this way, its accuracy is practically guaranteed, because it was found in two very different ways.
用这种方法，它的精确性被实践所证明，因为它是用这两种截然不同的方法查找的。
According to the statistics, about 90% of youngsters are using Internet and among students it is practically 100%.
据统计，大约90%的青少年正在使用互联网络，就在校学生而言，互联网几乎实现了百分之百的普及率。
It is available anytime and anywhere-regardless of season, climate and time of day-and is practically inexhaustible.
任何时间、任何地点都能利用地热——不论季节、气候和时间——而且几乎取之不尽。
If now it is found that this rule is practically right, then it is a law, because it is a categorical imperative.
如果发现这一个规则是实践上正确的，是一条法则，因为这是一条无条件的命令。
You want to avoid that trapped feeling that comes from thinking that one language is practically identical to another.
您应当避免产生这两种语言实际上相同的这种错误的想法。
ADOLESCENCE is practically synonymous in our culture with risk taking, emotional drama and all forms of outlandish behavior.
在我们的文化里，青春期几乎是冒险、情感闹剧和各种出格举动的同义词。
It is practically impossible to prevent at least some bugs getting into food in the field, no matter how stringent the hygiene rules.
无论多么严格的卫生规定，事实上都不可能阻止至少是一些病菌进入田间的食品。
The library from which to pull is practically endless -- almost like his casting list, which "you only have to be alive to be on."
音乐库里可以淘到的东西真的是无穷无尽——几乎像他要挑选的演员列表那么长，“可以说是活到老，淘到老。”
The fact that Somali legal terminology is practically devoid of loanwords from foreign languages suggests that the Xeer is truly indigenous.
索马里法律的专门术语完全没有外来词的这一事实暗示了赫尔法是一颗真正意义上土生土长的果实。
His company's annual "Alifest" is practically a revival meeting for Alibaba-Taobao users, and the waif-like Ma is their inspirational leader.
（其公司一年一度的网商大会（Alifest），实际上成了阿里巴巴和淘宝用户的布道大会，而瘦骨嶙峋的马云则是这些用户的精神领袖。）
The multi-tasking mom — our worries, our woes, our spit-up-stained business suits and overcommitted volunteering — is practically a walking cliche.
令我们烦恼悲哀的是，那个身兼数职，穿着脏西装过度投入工作的妈妈，实际上是一个陈腔滥调的人。
Since the Internet is comprised of an ever-changing number of servers, pinning down the precise amount of data contained online is practically impossible.
既然互联网是由数量不断变化的服务器组成的，那么确定网上含有多少数据的精确数量几乎是不可能的。
The blobfish is practically all face — a pale, gelatinous deep-sea creature whose large-lipped, sad-sack expression seems to be melting toward the floor.
水滴鱼实际上全身都是一张脸，这种苍白、胶状的深海生物长有大大的嘴唇，忧郁的表情似乎马上就要融化在地板上。
Leaving a server or router with the default passwords is practically an invitation for unscrupulous (or even just curious) people to start poking around.
保留服务器或路由器中的缺省密码，这无异于邀请那些不择手段的(甚至仅仅只是好奇的)人侵入系统。
For anyone getting their degree in education, student teaching is practically a requirement; a time to put what you learned in the classroom into practice.
任何一个人想得到教育方面的学位教学实习是个必要的要求；这是一个把你在课堂中学到的知识运用到实践的时段。
Look at the billiard ball alone — - forget the ping-pong ball — and try to see that the speed of the billiard ball is practically unaffected by the collision.
我们只看台球-，完全忽略乒乓球-，来看看台球的速度，它实际未受碰撞影响。
Working in PHP, the code is practically the same as Listing 10, but you have to change the XML document header to include the required automatic styles element.
在php中工作时，上述代码实际上与清单10相同，但您必须修改XML文档以包含必要的自动样式元素。
Working in PHP, the code is practically the same as Listing 10, but you have to change the XML document header to include the required automatic styles element.
在php中工作时，上述代码实际上与清单10相同，但您必须修改XML文档以包含必要的自动样式元素。
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