和离心泵相比，单螺杆泵不需要装阀门，而流量是稳定的线性流动。
And centrifugal pumps compared with single-screw pump do not need to install the valve, while the linear flow of traffic is stable.
在马里兰州，一些管辖区的所有新的单一家庭住宅都需要装自动灭火喷头。
In Maryland, some jurisdictions require sprinklers in all new single family homes.
为了在泵内存水，吸入管进口需要装底阀，泵工作时，底阀造成很大的水力损失。
In order to water pump suction pipe, memory, import needs bottom valve pump working, bottom valve caused great losses.
对一个飞行距离超长的航班来说，起飞时所装有的燃料中有一半之所以需要是因为载这么多乘客按规定需要装这么多燃料。
For a very long flight about half the fuel being carried on take-off is needed simply to carry the fuel required to carry the passengers.
现我们研究出黑夜之光，就是针对这一缺点进行改进，可以在暗盒内启动灯管，减少广大生产厂家在暗室中需要装感光灯的麻烦。
Now we study a night light is aimed at this one defect was improved, can be in Windows startup tubes, reduce within masses manufacturers in darkroom need outfit photosensitive lamp of trouble.
使用这种软件，你不需要为你的电脑装光盘驱动器或者任何昂贵的附带装置。
To use this software, you don't need a CD-ROM drive or any expensive add-ons for your computer.
你还帮助减少了垃圾的数量，因为你不需要用袋子来装食物。
You also help reduce the amount of rubbish because you don't need to use bags for packing your food.
充分利用头上的柜子来装那些你需要但是并不常用的文件夹和文件。
Make use of overhead cabinets for folders and files you need but don't use all the time.
这么大就够了，因为我们不需要三个卧室，一个阁楼，两个车位的车库来装没有用的废弃品。
This is possible because we don’t need three spare bedrooms, an attic, and a two-car garage to fill up with junk we don’t use.
关于建这个项目的成本，最主要的就是搭建教室，使之适应这种教学模式，我们需要两间能装170人，的教室来上这种课。
In terms of cost to institute this, the upfront cost to build classrooms, to accommodate this kind of structure, we need two classrooms that hold 170 students a piece to do this.
可以在需要时使用循环设备临时挂装文件，这有助于保护数据。
This is useful to protect your data by transiently mounting your file using the loop device when needed.
虽然至少几周之内你还不需要孕妇装，你的一些衬衫可能会变得有点紧了。
And even though you won't need maternity clothes for at least several weeks some of your shirts may become a little too tight.
在桥的正确位置装传感器可以再敲需要维修保养的时候及时通知工程师。
A bridge equipped with the right sensors can tell engineers when it needs to be serviced.
除非你恰好需要多买几个，5块钱一个和促销装的20块4个是没有什么区别的。
There’s no difference between $5 each and the four for $20 on sale, except that you just might end up with three more than you wanted.
为了避免铅中毒，用来装水的容易要用一种特殊的材料，即所谓的食品级材料，。货柜您使用的需要作出从一个特殊的物质，所谓食品级，为了避免泄漏的问题。
The container you use needs to be made from a special material, called food grade, in order to avoid leaking problems.
如果您需要更新eclipse，实际上您并不想要另外再装一个新的Eclipse或者在列表中去查找您所想要的功能部件和插件。
If you need to update Eclipse, you really don't want to either unzip a new Eclipse on top or hunt through the list of features and plug-ins to find those you want to move forward.
例如，我最开始装MOSS的时候安装的是中文版，现在需要做一个中英文的多语言站点，那么就需要下载英语版的语言包.下载语言包安装、重新运行sharepoint技术向导。这些，我们的sharepoint就可以创建多语言的网站了。
You do not need to download a language pack for the language you installed, these language packs are to support creation of additional languages.
这里的技巧是只在系统上安装您需要的东西-不多装，也不少装。
The trick here is to install only what you need on the system — no more, no less.
接下来呢，只允许自己下载一个文件或安装一个项目来装那些你生活中真正需要的东西。
Going forward, only allow yourself to download a file or install a program if life shows you a genuine need for it.
为让这一修改生效，不需要重新引导；只需重新挂装每个文件系统。
A reboot is not necessary to effect this change; you only need to remount each file system.
然而，在之前版本中以受信任方式运行32位包装器的用户，在v9中现在需要以隔离方式运行它们，这种变化本身就会导致可观的性能影响。
However, users running 32-bit wrappers in trusted mode in prior releases will need to run them in fenced mode in V9, and this change alone can have considerable performance impact.
发光的灯泡装的图标用于标识需要人们参与的任务。
Light bulb ICONS are used to mark the tasks that require human intervention.
需要的话，他能够扛起三十公斤重的背包像没事一样，但他出门通常不背兜：他衣兜里装的就足够了。
If necessary, he could carry a backpack that weighed thirty kilos as if it were nothing, but usually he travelled without a pack: his pockets were enough.
对同样大小的电池而言，不需要添装化学品可以提供更多电能。
Not having to carry the chemicals around in the battery offers more energy for the same size battery.
加西亚女士说，珠宝首饰真的是将日装变成晚装的最简单的方法。她说，每当有晚间活动需要出席的时候，她总是会在白天的手袋里装上一只饰有金属或珠宝的晚装包。
'Jewelry is really the easiest way to transform from day to evening,' she says, noting that she carries a little studded or jeweled clutch in her daytime bag when she has evening events to attend.
虽然它支持热交换，但修改插装只需要升级该文件和JVM周期就可以了。
Modifying the instrumentation simply requires an update of that file and a JVM recycle, although hot swap is widely supported.
当我游离着镜子前面最新款的模特装时，她就会平静的问我，你需要或者你想要吗？
And as I was swanning about in front of the mirrors, modelling the latest must-have item, she would quietly ask me, 'do you NEED it or do you WANT it?
当我游离着镜子前面最新款的模特装时，她就会平静的问我，你需要或者你想要吗？
And as I was swanning about in front of the mirrors, modelling the latest must-have item, she would quietly ask me, 'do you NEED it or do you WANT it?
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