2016年職稱英語考試理工B概括大意真題答案及解析
【摘要】環(huán)球網(wǎng)校:2016年職稱英語考試剛剛結束,考生最關心得就是考試答案。對此,環(huán)球小編整理了《2016年職稱英語考試理工B概括大意真題答案及解析》,希望2016年職稱英語考試的考生都能順利通關。
相關推薦:2016職稱英語真題答案與解析專題
概括大意與完成句子:Geothermal(地熱)Energy
1. Since heat naturally moves from hotter regions to cooler ones, the heat from the earth's center flows outwards towards the surface. In this way, it transfers to the next layer of rock. If the temperature is high enough, some of this rock melts and forms magma(巖漿). The magma ascends in its turn towards the earth's surface. It often remains well below the earth's surface, (環(huán)球網(wǎng)校2016年職稱英語考試理工B概括大意真題答案及解析)creating vast areas of hot rock. In such regions, there are deep cracks, which allow rainwater to descend underground. Some of the heated rain water travels back up to the earth's surface where it will appear as a hot spring. However, if this ascending hot water reaches a layer of impermeable(不可滲透的)rock, it remains trapped, forming a geothermal reservoir. If geothermal reservoirs are close enough to the surface, they can be reached by drilling wells. Hot water and steam shoot up the wells naturally, and can be used to produce electricity in geothermal power plants.(環(huán)球網(wǎng)校2016年職稱英語考試理工B概括大意真題答案及解析)
2. A few geothermal power plants depend on dry-stem reservoirs which produce steam but little or no water. In these cases, the steam is piped up directly to provide the power to spin a turbine generator. The first geothermal power plant, constructed at Lardarello in Italy, was of this type, and is still producing electricity today.
3. Most currently operating geothermal power plants are either "flash" steam plants or binary(雙重的)plants. Flash plants produce mainly hot water ranging in temperature from 300° to 700°Fahrenheit. This water is passed through one or two separators where released from the pressure of the underground reservoir, it "flashes" or boils into steam Again, the force of this steam provides the energy to spin the turbine and produce electricity. The geothermal water and steam are then reinjected directly back down into the earth to maintain the volume and pressure of the reservoir. Gradually they will be reheated and can then be used again.(環(huán)球網(wǎng)校2016年職稱英語考試理工B概括大意真題答案及解析)
4. A reservoir with temperatures below 300° Fahrenheit is not hot enough to flash steam but it can still be used to generate electricity in binary fluid. The steam from this is used to power the turbines. As in the flash steam plant, the geothermal water is recycled back into the reservoir.
編輯推薦
環(huán)球網(wǎng)校友情提示:2016年職稱英語考試已經(jīng)結束,本文整理“2016年職稱英語考試理工B概括大意真題答案及解析”,供考生參考練習。如果您在此過程中遇到任何疑問,請登錄環(huán)球網(wǎng)校職稱英語頻道及職稱英語論壇,我們隨時與廣大考生朋友們一起交流!
【摘要】環(huán)球網(wǎng)校:2016年職稱英語考試剛剛結束,考生最關心得就是考試答案。對此,環(huán)球小編整理了《2016年職稱英語考試理工B概括大意真題答案及解析》,希望2016年職稱英語考試的考生都能順利通關。
相關推薦:2016職稱英語真題答案與解析專題
編輯推薦
環(huán)球網(wǎng)校友情提示:2016年職稱英語考試已經(jīng)結束,本文整理“2016年職稱英語考試理工B概括大意真題答案及解析”,供考生參考練習。如果您在此過程中遇到任何疑問,請登錄環(huán)球網(wǎng)校職稱英語頻道及職稱英語論壇,我們隨時與廣大考生朋友們一起交流!
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