| 单词 | radiation |
| 释义 | radiation (reɪdieɪʃən ) 1. uncountable noun Radiation consists of very small particles of a radioactive substance. Large amounts of radiation can cause illness and death. They fear the long term effects of radiation. If the cancer returns, radiation therapy is successful in 90 per cent of cases. 2. uncountable noun Radiation is energy, especially heat, that comes from a particular source. The satellite will study energy radiation from stars. Collocations: measure radiation Visitors carry dosimeters to measure radiation. Times, Sunday Times Its x-ray telescope was used to measure radiation between 0.05 and 0.5 nanometres. Retrieved from Wikipedia CC BY-SA 3.0 Scientists in the project were attempting to develop instruments to measure radiation in gas-filled, electrically charged ionization chambers in nuclear reactors. Retrieved from Wikipedia CC BY-SA 3.0 He improved and invented a number of devices for measuring radiation, and determined the freezing and melting points of palladium. Retrieved from Wikipedia CC BY-SA 3.0 He also worked on measuring radiation emitted from stars, and invented and built new instrumentation for this purpose. Retrieved from Wikipedia CC BY-SA 3.0 This wasted energy and meant the machines needed expensive radiation shielding. Times, Sunday Times (2012) Helicopters with giant buckets were deployed, but without radiation shielding it was too dangerous for the pilots to fly low enough to take proper aim. Times, Sunday Times (2011) Damage to the eyes caused by solar radiation. Take Care of Your Skin (1990) Smoke plumes have the ability to change the atmospheric heat content due to absorption and reduced reflection of solar radiation. 2008, 'Observations of shallow convective clouds generated by solar heating of dark smoke plumes', Atmospheric Chemistry and Physics Three representative luminous efficacy models are selected and evaluated with measured solar radiation and illuminance data from four worldwide cities. 2018, 'Comparative Analysis of All-Sky Luminous Efficacy Models Based on Calculated and Measured Solar Radiation Data of Four Worldwide Cities', International Journal of Photoenergy A pyranometer was also installed to measure solar radiation levels. 2017, 'Thermal Transmission through Existing Building Enclosures: Destructive Monitoring in Intermediate Layers versus Non-Destructive Monitoring with Sensors on Surfaces', Sensors The following variables were analyzed: air temperature, specific humidity, solar radiation and heat flows. 2012, '<b>Study of the microclimate effect in the urban vertical structure in Ourinhos, São Paulo State</b> - doi: 10.4025/actascitechnol.v34i3.12322', Acta Scientiarum: Technology The forms are sculpted by great outpourings of ultraviolet radiation from nearby young stars, which boil off the gases from the columnar surface. Times, Sunday Times (2006) Without this protective blanket the ultraviolet radiation would be very harmful indeed to human and animal health. Times, Sunday Times (2012) It is already well established that ultraviolet radiation produces free radicals in tissue. The Antioxidant Health Plan (1994) A layer of ozone gas in the stratosphere helps to protect the Earth from the full onslaught of the sun's ultraviolet radiation. Times, Sunday Times (2006) The main cause is ultraviolet radiation from the sun or sunbeds. Times, Sunday Times (2008) Translations: Chinese: 辐射 Japanese: 放射 |
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