However, actual field test is necessary for highest level of reliability. Aerodynamic studies of aircraft, automobiles, wind turbines, civil engineering components related to buildings and mechanical structures are playing very important role in development of these products/ systems or subsystems ...
There is a great need to search for clean and renewable(可再生的)energy to meet our needs. It seems that wind energy is a good choice. Do you know anything about wind energy?large tower The first advantage of wind energy is that it truly is a renewable resource. No matter how much wi...
- **C. energy**:指广义的“能源”,天然气属于化学能源,风能属于可再生能源,二者均是能源的不同形式(forms of energy),符合语境及逻辑。 - **D. material**:指具体“材料”,与能源无关,明显错误。 综上,正确选项为**C. energy**。反馈 收藏 ...
wind/waɪnd/ down (疲劳或紧张后) 放松一下 【解释】 If you wind down, you relax after doing something that has made you feel tired or tense. 【例句】 I usually have a drink to wind down after a whole day's work. 工作一天之后,...
Wind turbine. Author: Luc Legay. License: Creative Commons, Attribution-ShareAlike 2.0 Generic. But the industry also carries a dark secret. That staggering amount of investment has yielded a very poor return on capital (ROC) for most of the companies who have developed and sold wind ...
Additionally, advanced transmission technologies, such as ultrahigh voltage and flexible direct current, have enabled the efficient long-distance transport and distribution of electricity from these clean energy bases, leading to eno...
Because of air pollution, we need to develop new energy. New energy 1. ___ (main) comes from the wind, the water, the earth and the sun.Energy from the wind: in many places of the world,people use the power of the wind. It's a clean source of energy. But if the wind doesn'...
A large factory near your town may have many generators.Energy from CoalAbout half of the electricity comes from the coal. Coal is under the ground. People can burn coal to make energy to heat water.(a)People can use wind to make electricity. Blowing wind helps a wind generator to make...
People battle wind and sand in Harbin, Heilongjiang province, on April 10, 2023, as sandstorms hit many places in northern China including Beijing. ZHANG SHU/FOR CHINA DAILY The frequent and strong sandstorms that have swept across northern China and some parts of southern China this year have...
Furthermore, he concludes that wind—when combined with solar and water power, various energy storage systems and incentives for people to shift the time of some of their electricity use—could meet not only all electricity needs worldwide, but allenergy demandin total, every minute of such cri...