But extensive use of fossil fuels caused serious environmental problems, and its reserves are limited.
但是化石能源的广泛应用造成了日益严重的环境问题，而且其储量也有限。
But extensive field tests revealed nuances, variables that determined exactly how funny a joke was perceived to be.
但是广泛的现场试验揭示出了那些细微之处和变量，它们决定了能感知到的一个笑话的有趣的程度究竟如何。
Michael crawls through the hole and into a narrow, but extensive service corridor. Metal catwalks and pipes sprawl in all directions.
Michael爬过洞去，进入了一个狭窄的，但是空间广阔的维修通道，狭窄的通道和管道向各个方向蔓延展开。
But extensive irrigation projects, the encroaching desert and an increasingly dry climate have caused to shrink to 5% its former size.
但是过度的灌溉，逐渐的沙漠化以及气候的变化，已经使如今乍得湖的面积仅为以前的5%。
With one of the top flower giving holidays just around the corner, deciding on a blossom for your honey can be a fun but extensive task.
其中一个最花给予假期即将到来，决定对花的蜂蜜可以是一个有趣的，但广泛的任务。
But extensive study by economists has found little correlation, in either direction, between inequality and economic growth rates across countries.
但是经济学家的大量研究已经发现，各国的不平等程度和经济增长率之间没有任何关联性，不论是正向还是反向。
Extensive reading is not reading word for word but finding out the main ideas of the passage.
泛读并非逐字逐句地阅读，而是找出文章的主要意思。
A special purpose lane system would require more extensive physical modifications to existing highways, but it promises the greatest gains in freeway capacity.
建立专用车道系统需要对现有公路进行更广泛的物理改造，而它又保证了公路车辆通行量能够得到最大程度的提高。
The Scottish Highlands were once the site of extensive forests, but these forests have mostly disappeared and been replaced by peat bogs.
苏格兰高地曾经是大片森林的所在地，但这些森林大部分已经消失，取而代之的是泥炭沼泽。
Most limestone and sandstone aquifers are deep and extensive but may contain groundwaters that are not being recharged.
大部分的石灰岩和砂岩的蓄水层都是深而广的，但可能含有不可再生的地下水。
Most limestone and sandstone aquifers are deep and extensive, but may contain groundwaters that are not being recharged.
大多数石灰岩和砂岩的蓄水层很深并且规模很大，但是它们含有的地下水可能是当前无法再生的。
His memory, too he described as extensive, but hazy.
他说自己的记忆范围也很广，但印象模糊。
If the value of context switching is very high, increasing the time slice can improve performance, but this should only be done after extensive analysis.
如果上下文切换的值非常高，则增加时间切片可提高性能，但这必须在经过大量分析之后才能实施。
Li: Yes, they have to do so, but that requires extensive exposure to the English environment.
李：对，他们是得这样做，但这需要广泛地接触英语环境。
The framework's power comes not from an extensive library of code but from its simplicity, combined with its generality and well-architected distribution of responsibilities.
框架的强大并非源于一个广泛的代码库，而是源于其自身的简单，以及其普遍适用性和职责在体系结构上的良好分布。
The two have not trained for a pump module replacement but had extensive spacewalk training together.
这两个人都没有进行过更换泵模组的训练，但是曾经在一起进行了广泛的太空行走。
We do need more extensive measurement of the Himalayan range but it is clear from satellite pictures what is happening.
我们需要对喜马拉雅山脉进行更广泛的测量，但是卫星照片已很清楚地表明正在发生什么。
Spread over many pages, they offer extensive product descriptions but are nevertheless printed and packed in a compact format.
它们以许多个页面提供丰富的产品资讯，但仍然是以紧凑的格式来印刷和包装。
Thus, nations with extensive productive knowledge but relatively little wealth haven't met their potential, and will eventually catch up, Mr. Hausmann said.
豪斯曼说，因此，拥有丰富生产知识但相对较不富裕的国家尚未发挥全部潜力，他们最终会赶上来。
Though it is called the "straddling bus," Huashi's invention resembles a train in many respects - but it requires neither elevated tracks nor extensive tunneling.
虽然被称作做“立体快巴”，华世的这个发明和火车却在许多方面都存在相似，但它既不需要铺轨也不需要大量的隧道。
Sheldon not only has an extensive comic book collection, but he is fully aware of its contents.
谢耳朵不仅广泛收集漫画书，他还对书中的内容了如指掌。
The new long term solution is essentially ready, but won't be released until next year to allow for extensive testing.
新的长期解决方案实际上已经准备就绪了，但是我们会在明年才会发布，因为需要对其进行更广泛的测试。
This extensive—but easy to read! —chart will help you navigate the world of smartphone features and specifications.
下面是一张内容巨广泛但易于阅读的对照图表，帮助你在智能手机功能和规格的世界里清楚的漫游。
It contains extensive paraphrases of readings, generally, but not always, clearly credited.
它包含了大量阅读的段落，这些段落一般是被明确认可的，虽然未必总是如此。
But undergraduates are already making extensive use of standard biological parts, through the annual International Genetically Engineered Machine competition launched in 2005.
但通过2005年发起、一年一度的国际基因工程机器设计大赛(International Genetically Engineered Machine competition)，大学生们已在大量使用标准生物部件。
But Woodward's more extensive sample size showed much different results.
但是Woodward更广泛的取样显示出了不同的结果。
In addition, perhaps a future Psyco could decide to perform more extensive (but more costly) optimizations on heavily-run operations.
另外，也许今后的Psyco可能会决定对费力运行的操作进行更广泛(但也更昂贵)的优化。
Sun Microsystems offers tools to help you test your GUI without an AT reader (see Resources), but the tools require extensive human interaction to be effective.
Sun Microsystems提供了帮助您不用AT 阅读器即可测试GUI 的工具（请参阅参考资料），但这些工具需要大量人工交互才能有效实施。
Yes, there are some things we all seem to emphasize, but our differences can be extensive.
没错，总是有些东西是我们都强调的，但是我们的差异可能很大。
Yes, there are some things we all seem to emphasize, but our differences can be extensive.
没错，总是有些东西是我们都强调的，但是我们的差异可能很大。
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