求 高中英语作文 核能的利弊 别给我大学生水平的 谁有2011年高考英语作文热点素材啊 。。。
来源:新能源网
时间:2024-08-17 09:46:54
热度:
求 高中英语作文 核能的利弊 别给我大学生水平的 谁有2011年高考英语作文热点素材啊 。。。【专家解说】:Nuclear power plants provide about 1
【专家解说】:Nuclear power plants provide about 17 percent of the world's electricity.Some countries depend more on nuclear power for electricity than others. In France, for instance, about 75 percent of the electricity is generated from nuclear power. There are more than 400 nuclear power plants around the world.
To build a nuclear reactor (核反应堆),what you need is some mildly2 enriched uranium(铀). Uranium is a fairly common element on Earth,incorporated3 into the planet during the planet's formation(形成). U-235 is one of the few materials that can undergo4 induced fission(诱发性核裂变). Raising and lowering the control rods(杆,棒条) allow operators to control the rate of the nuclear reaction.When an operator (操作员) wants the uranium core to produce more heat,the rods are raised out of the uranium bundle(捆,束). To create less heat, the rods are lowered into the uranium bundle.The rods can also be lowered completely into the uranium bundle to shut the reactor down in the case of an accident or to change the fuel. The uranium bundleactsasanextremely high-energy source of heat. It heats the water and turns it to steam. The steam drives a steam turbine(汽轮机), which spins5 a generator(发电机) to produce power.
Well-constructed nuclear power plants have an important advantage when it comes to electrical power generation——they are extremely clean. Compared with a coalfired power plant, nuclear power plants are a dream come true from an environmental standpoint (立场,观点). Unfortunately, there are significant problems with nuclear power plants. Mining and purifying(提纯) uranium has not, historically, been a very clean process. Improperly func- tioning nuclear power plants can create big problems. The Chernobyl6 disaster is a good example.Spent fuel from nuclear power plants is toxic (有毒的) for centuries, and, as yet, there is no safe, permanent(永久的) storage facility for it.
上一篇:得了白垫风能不能结婚生孩子
-
世界上,核能发电量最多的国家是?2024-08-17
-
下列能源中属于不可再生能源的是 A. 地热能 B. 水能 C. 核能 D. 潮汐能2024-08-17
-
在经济发达但缺乏常规能源的地区,电力工作的重点应该是 A. 煤炭发电 B. 石油发电 C. 天然气发电 D. 核能发电2024-08-17
-
核能 环境的影响2024-08-17
-
3月11日,日本发生里氏9级大地震,强震引发了海啸及核泄漏,这是日本二战后遭遇的最严重震灾,很大程度上冲击了日本经济和社会。有关核电2024-08-17
-
为什么核能是一次能源?2024-08-17
-
利用核能发电在现代国民生产中有极其重要的价值.下列有关其能量转化过程中叙述正确的是2024-08-17
-
核电站是将核能变为电能的装置,将核能变为热能的部分称为核岛,将核能变为电能的部分为常规岛。对吗2024-08-17
-
核能分裂成核裂变能和核聚变能是通过什么释放出的能量2024-08-17
-
为什么宇宙航空器不适用核能推进?2024-08-17
-
关于核能利用的问题2024-08-17
-
如何看待核能2024-08-17
-
核能属不属于未来新能源?2024-08-17
-
火力发电电力会不会稳定? 水力发电电力会不会稳定? 核能发电电力会不会稳定 ? 风力发电电力会不会稳定?2024-08-17
-
核能、太阳能、风能、生物质能、地热能、海洋能、氢能,还有什么新能源?越新的越好。2024-08-17