美国能源部提交的一份报告显示赶在石油峰值到来之前启动一个紧急方案来取代目前的能源供应或设备大概需要20年左右才能起作用。
As a report commissioned by the US Department of energy shows, an emergency programme to replace current energy supplies or equipment to anticipate peak oil would need about 20 years to take effect.
显然，在我们开发结构时我们使用了很多的隐喻，但是它们并不能取代结构的作用。
Clearly, when we develop an architecture we use many metaphors, but it certainly does not take the place of an architecture.
木炭产生了很多温室气体之后，又取代了在清洁过程中起到了很大作用的物质，历史会给这种物质一个不错的评定。
And there would be a nice historical justice in the substance that was displaced by coal playing an important role in cleaning up the mess that coal has left behind.
但无论孰对孰错，这都是一个极富吸引力的想法：为什么不能利用光合作用用回收二氧化碳的方法来取代直接将其排放到大气中的做法呢？
Whoever turns out to be right, though, it is an intriguing idea: instead of releasing the carbon dioxide produced by burning fossil fuels into the atmosphere, why not recapture it by photosynthesis?
这些经济体有着较低的负债水平，前景乐观，目前被看作是取代发达经济体承担起了拉动全球经济增长的作用。
Those economies, with lower debt levels and strong outlooks, are now seen as having taken on the role of driving global economic growth from the developed economies.
我们知道企业的贪婪正在被慷慨解囊所取代，我们也知道在财务状况和对社区和社会需求所给予的关注间存在着潜在的协同作用。
We know that corporate greed is being replaced by generosity and we know there is potential synergy between financial performance and attention to community and social needs.
如同声音输入一样，手势能够为键盘的功能起到补充作用，但是却不能取代键盘进行文本输入。
Like voice input, gestures complement keyboard usage activity but will not replace the need for keyboard text entry.
在别的国家，副作用竟然是灾难性的，但没有良好的药物取代它而被广泛使用着。
In others, the side effects turned out to be catastrophic but weren't well-known until after the drug was widely used.
Facebook还不能取代LinkedIn和Twitter对科技社区的作用，最主要的原因是它并不是一个针对专业团体和即时交流的网络。
Facebook can not replace LinkedIn and Twitter for the tech community, precisely because it is not focused on professional networking and instant communication.
如果你关注这个事实：最有趣的应用都是 “互联”应用，而且万维网经济的动态性仍在起作用，你会将这一切更多地看做是进化而非取代。
If you focus on the fact that the most interesting apps are *connected* apps, and that the dynamics of network economies are still in play, you see this less as a replacement and more as an evolution.
本质上，同种的相互作用，会被不同种的相互作用取代。
And essentially, likes interactions will be replaced by unlike interactions.
随着时间的推移，您有理由相信这些技术将逐渐成熟并最终为更好、更有效、更健壮的技术所取代，但是，就目前的情况而言，它们可以发挥作用。
Over time, you can reasonably expect these technologies to mature, and eventually be replaced with better, more efficient, or more robust ones, but for the moment, they will do.
最终，蓝藻的出现带来了光合作用，它产生的氧气取代了产甲烷菌和甲烷气体，与今日相似的大气层终于形成了。
Eventually, photosynthesis arrived in the form ofcyanobacteria. Their exhalations, oxygen, did for both methanogens and methaneand created an atmosphere similar to the one that exists now.
我们想当然地以为神药永远存在，旧药最终失效，而更新、更好、作用更强的药物会取代它们。
We have assumed that miracle cures will last forever, with older drugs eventually failing only to be replaced by newer, better and more powerful ones.
而且也不能取代正确宏观经济调控所起的作用。
Nor is it a substitute for getting the macroeconomics right.
而今天，单身之夜、聊天室、酒吧取代了它在人类求偶过程中的作用。
Single’s evenings, chat rooms, and bars have now taken its place in the process of human mate-seeking.
这项装置，名为视网膜下植入元件，位于视网膜下部，可以直接取代视网膜退化失去的光受体而发挥作用。
The device — known as a subretinal implant — sits underneath the retina, directly replacing light receptors lost in retinal degeneration.
美国的领导作用仍然不可或缺，目前世界上似乎没有其他国家能够取代美国来推动阿以间的和平进程。
Their leadership is still needed; nobody else is likely soon to step into America’s peace-processing shoes.
这些商家惯用的手段不外乎片面夸大其所谓的降压作用，许多人信以为真，甚至以此来取代正规的药物治疗。
Nothing more than a means used by the so-called one-sided exaggeration of the hypotensive effect, many people believe, even in order to replace the regular medication.
不过有一件事是确定的：与手机取代公用电话不同，Twitter并没有取代我的社会网络活动—相反它起到了促进的作用。
One thing is for sure, though: Unlike cell phones displacing pay phones, Twitter hasn't replaced my social-networking activity - it enhances it.
以植物光合作用为基础，这家硅谷初创企业正在开发据说是碳负性的燃料，可从空气中吸收二氧化碳，有朝一日可能将取代汽油的位置。
The Silicon Valley startup is developing what it says are carbon-negative fuels, based on plant photosynthesis, that absorb CO2 from the air and could someday replace gasoline.
目录与主动网络-了解搜索引擎，博客和其他社会部分的网络正在取代的作用的目录。
Directories vs the Active web - learn how search engines, blogs, and other social parts of the web are replacing the role of directories.
在评估退行性椎体滑移神经症状方面，CT及CT脊髓造影检查的作用很大程度上已经被MRI取代。
The role of CT and CT myelography in the assessment of neurological symptoms in DS has been largely replaced by MRI.
电脑将会在教育过程中起越来越关键的作用，但是它们绝对不能在教室中取代老师的地位。
Computers will play an increasingly critical role in education, but it is impossible that they could replace teachers in the classroom.
由于人工软化水采用钠离子取代镁离子和钙离子，因此具有极强的腐蚀作用。
Artificially softened water is exceedingly corrosive because the process substitutes sodium ions for magnesium and calcium ions.
他的一些创意发挥了异常神奇的作用，而有一些已经被淘汰掉，被更好的取代了。
Some of his ideas have worked spectacularly well, and some have fizzled out, overtaken by something better.
他的一些创意发挥了异常神奇的作用，而有一些已经被淘汰掉，被更好的取代了。
Some of his ideas have worked spectacularly well, and some have fizzled out, overtaken by something better.
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