单词 | nonradioactive |
例句 | He had also begun negotiating a contract with Eastman Kodak for large-scale industrial production of these nonradioactive substances. Big Science 2015-07-07T00:00:00Z This method is based on the slow decay of radioactive carbon 14, a very minor component of carbon, the ubiquitous building block of life, into the nonradioactive isotope nitrogen 14. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z The melters will be tested using first a nonradioactive waste simulant and then radioactive waste before the facility is turned over for waste-treatment operations. At Hanford, world’s largest radioactive-waste melter is fired up again 2023-06-27T04:00:00Z Comparing these sequences from the power plant dogs, the Chernobyl City dogs and purebred shepherds living in nonradioactive environments might help the researchers identify radiation-related changes in the genome. In Chernobyl’s Stray Dogs, Geneticists Find Nuclear Families 2023-03-03T05:00:00Z If the specimen is less than 50,000 years old, bones, charcoal and other organic substances can be dated based on the percentage of radioactive carbon that has degraded to a nonradioactive nitrogen. What Is a Dog Anyway? 2022-12-08T05:00:00Z Once both are at operating temperature, the facility next will heat a nonradioactive simulant of tank waste with glass former as part of preparations to treat radioactive waste. No turning back: World’s largest radioactive waste melter starts in Central WA 2022-10-09T04:00:00Z Suppose we measure the amount of uranium relative to nonradioactive elements in a very old star and in our own Sun, and compare the abundances. Astronomy 2016-10-13T00:00:00Z She glows in the dark, but in an extremely healthy, nonradioactive way. The Electable Female Candidate 2019-12-09T05:00:00Z And the lutetium should have decayed to a nonradioactive material within a few months. Radiation in a crematorium traced back to a human body 2019-02-26T05:00:00Z The department now intends to dilute the plutonium with nonradioactive materials and dispose of it in a repository for defense waste in New Mexico. Billions of dollars later, Energy Department pulls plug on partly built nuclear fuel plant 2018-05-11T04:00:00Z Instead, Putin said, the U.S. opted to mix the plutonium with other, nonradioactive materials and store the mix. Putin suspends deal with the U.S. on weapons-grade plutonium disposal 2016-10-03T04:00:00Z Tank farm work involving the movement of nuclear waste is suspected in the release of the nonradioactive chemical vapors, which are invisible. Workers at some Hanford radioactive waste tank farms stop work in dispute over vapors 2016-07-11T04:00:00Z Tank-farm work involving the movement of nuclear waste is suspected in the release of the nonradioactive chemical vapors. Hanford nuclear contractor proposes changing workers’ shifts to cut vapor exposure 2016-07-08T04:00:00Z For example, dynamic contrast-enhanced imaging uses a nonradioactive substance injected into a patient to light up the tumor area; another, diffusion-weighted imaging, reveals details about a tumor’s structure. A better way to diagnose and treat cancer 2015-04-27T04:00:00Z By studying the ratio of the two nonradioactive isotopes of carbon—13C and 12C—in the enamel of teeth, researchers can detect whether an ancient creature ate a diet rich in woodland or grassland plants. Human Ancestors Were Grass Gourmands 2012-11-12T20:38:18Z The moon contains large concentrations of helium-3, a nonradioactive isotope that's rare on Earth but could be an incredibly valuable fuel for nuclear fusion. Cosmic Landlord 2011-06-08T22:00:00Z There are other ways to build equipment to detect smuggled nuclear material, but helium-3 is nontoxic and nonradioactive and is considered more accurate. Agencies? Lack of Coordination Hindered Supply of Crucial Gas, Report Says 2011-05-28T16:45:52Z Energy Solutions takeover is a response to prior decommissionings, such as Maine Yankee in the 1990s, which rapidly grew in expense as workers attempted to sort radioactive material from its nonradioactive counterparts. How to Tear Down a Nuclear Power Plant [Slide Show] 2011-04-29T10:15:00.247Z He and his colleagues grew flaxseeds in contaminated soil in the Chernobyl region and compared them with flax grown in nonradioactive soil. Observatory: Plants Near Chernobyl Appear to Grow a Shield 2010-09-20T21:40:00Z |
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