最近做阅读，翻译NO的题，求指教！

Olivier123UID: 3174835

最近练习阅读，做NO的题，现在把自己的一篇翻译拿上来，希望大家能指正。划横线的地方是我自己不太懂的地方~~
The energycontained in rock within the earth’s crust represents a nearly unlimited energysource, but until recently commercial retrieval has been limited to undergroundhot water and/or steam recovery systems.
These systems have been developed in areasof recent volcanic activity, where high rates of heat flow cause visibleeruption of water in the form of geysers and hot springs. In other areas,however, hot rock also exists near the surface but there is insufficient waterpresent to produce eruptive phenomena. Thus a potential hot dry rock (HDR)reservoir exists whenever the amount of spontaneously produced geothermal fluidhas been judged inadequate for existing commercial systems.
在地球外壳的岩石中存储的能量代表了一种几乎是用不完的能量，但是直到最近商业恢复才被地下水或者是地下溪流的恢复体系限制住。这些系统在最近火山活动的地点发展了起来，这些地方在喷泉和温泉的形成中有着高比例的可以引起明显的水的喷发的热流。但是，在其他区域，尽管热岩石也存在于表面，那里没有足够的水去产生爆炸的现象。因此潜在的热干岩石（HDR）存储库存在于任何自发形成的地热流被判断为对现存商业系统是不足的地方。



As a resultof recent energy crisis, new concepts for creating HDR recovery systems—whichinvolve drilling holes and connecting them to artificial reservoirs placed deepwithin the crust—are being developed. In all attempts to retrieve energy fromHDR’s, artificial stimulation will be required to create either sufficientpermeability or bounded flow paths to facilitate the removal of heat bycirculation of a fluid over the surface of the rock.
作为最近能源危机的结果，创造HDR恢复系统的新概念——包含打洞和连接它们到人造的被深埋在地壳中的存储场地——被发展了起来。在所有找回HDR的能量的尝试中，人工模拟将会被请求，使用在岩石表面循环流动的液体这种方法去创造足够的渗透性和有边界的流动的路线去促进热的移动。



The HDRresource base is generally defined to included crustal rock that is hotter than150℃, is at depths less than ten kilometers, and can be drilled withpresently available equipment. Although wells deeper than ten kilometers aretechnically feasible, prevailing economic factors will obviously determine thecommercial feasibility of wells at such depths. Rock temperatures as low as 100℃ may beuseful for space heating; however, for producing electricity, temperaturesgreater than 200℃ are desirable.
HDR资源的根本一般被定义为包括地壳超过150摄氏度的岩石，存在于10千米以上的深度，并且是可以被目前可用的器械挖掘出来的。即使大于10千米深的矿井在技术上是可行的，流行的商业因素很明显将会决定这样深的井在商业上的可用性。在100摄氏度的岩石也许可以被用来做房间的取暖；但是为了发电，200摄氏度以上的温度是较好的。



Thegeothermal gradient, which specifically determines the depth of drillingrequired to reach a desired temperature, is a major factor in therecoverability of geothermal resources. Temperature gradient maps generatedfrom oil and gas well temperature-depth records kept by the AmericanAssociation of Petroleum Geologists suggest that tappable high-temperaturegradients are distributed all across the United States. (There are many areas,however, for which no temperature gradient records exist.)
地热的梯度，特别是它决定了挖掘的深度以便达到一个理想的温度，是利用地热资源的一个主要的因素。AAPG保留的从石油和气体井的温度-深度图中产生的温度梯度图暗示可开发的高温梯度在全美都是有被分配的。（但是，有一些地方是没有温度梯度报告存在的）

Indicationsare that the HDR resource base is very large. If an average geothermaltemperature gradient of 22℃ per kilometer of depth is used, a staggering13,000,000 quadrillion B.T.U.’s of total energy are calculated to becontained in crustal rock to a ten-kilometer depth in the United States. If weconservatively estimate that only about 0.2 percent is recoverable, we find atotal of all the coal remaining in the United States. The remaining problem isto balance the economics of deeper, hotter, more costly wells and shallower,cooler, less expensive wells against the value of the final product,electricity and/or heat.
所有的暗示表示HDR的资源基本是很大的。如果一个地热的平均温度梯度在每22摄氏度1千米被用到，那么大约13,000,000的五次方的B.T.U的总能量被计算出将会包含在10千米深的地壳岩层中在美国。如果我们保守估计只有0.2%能够使用，我们将会发现这等于所有在美国保留的煤矿的总和。剩下的问题是在更深，更热更贵的井和更浅，更冷更便宜的井与最终的产品，电与热之间找到一个经济平衡点。

diehardUID: 2547783

通过翻译来练习阅读真心是错的。表再纠结那些你理不顺的地方和生词了，GRE阅读一考逻辑，二是看你在时间压力下的反应。大部分你所纠结的地方连出题都不会出。

okqishiUID: 3245371

通过翻译来练习阅读真心是错的。GRE阅读一考逻辑，二是看你在时间压力下的反应。
diehard 发表于 2012-3-9 10:09

LS说得对

Olivier123UID: 3174835

好的，那么NO题里面是不是从NO4开始做比较好？