A. having little power B. working well without wasting time or energy C. very large D. very E. xpensive 相关知识点: 试题来源: 解析 B。解析:在描述环保科技产品如太阳能电池板时,“efficient”表示高效的,也就是工作良好且不浪费时间或者能源,而不是功率小、很大或者很贵的意思。反馈...
Solar power is usable energy generated from the sun with solar panels. It is a clean, inexpensive, and renewable power source available everywhere.
英语翻译Solar power is the energy from the sun that is converted into thermal or electrical energy.The direct collection of solar energy involves artificial devices,called solar collectors,that are designed to collect the energy,sometimes through prior focusing of the sun's rays.The energy,once col...
Governments should be encouraging research into new technologies, such as cars run by solar power(太阳能), electricity, hydrogen, and so on. Much of this research has, in the past, been held back by the oil, gas, and coal. If the world’s millions of cars were 10% more efficient(...
What is solar power? Solar power is a renewable form of energy harvested from the sun for the purpose of producing electricity or thermal energy (heat). Solar energy is free and plentiful, and its use doesn't impact the environment like fossil fuels, although solar power still comes with se...
More and more countries are investing in solar power projects. The technology of solar panels is also constantly improving, making them more efficient and affordable. As a result, the use of solar energy is becoming more widespread. Looking into the future, solar energy is expected to play an...
What potential exists for using renewable energy from the wind (wind power) to produce most of the electricity used in the United States? What is basal metabolic rate? How does energy flow through an ecosystem? What precisely does it mean to be metabolically efficient? What do you think shoul...
As technology continues to advance, solar panels are becoming more efficient and affordable. This will lead to increased adoption of solar energy and a reduction in our dependence on traditional energy sources. However, there are also challenges that need to be addressed. One of the main ...
Traditional energy companies – oil and gas primarily – will need to optimize efficiency to survive a world of lowering demand, supply gluts, and the prospect of US$25-per-barrel oil. Exploration and drilling will need to be more efficient and intelligently planned. Refineries will need to im...
earth’s surface in one hour is enough to power human activity for one year. Hence, solar energy provides one of the best options to sustain human civilization. An efficient photosystem is able (1) to absorb a large amount of broadband solar energy at full solar spectrum, (2) conv[...