| 单词 | heavy hydrogen |
| 例句 | When plants lose water to evaporation in dry weather, their leaves become enriched in a heavy hydrogen isotope, deuterium. Greenland’s Vikings may have vanished because they ran out of water 2022-03-22T04:00:00Z The usual fuel for producing controlled fusion in reactors consists of a mix of the heavy hydrogen isotopes deuterium and tritium, which may unite to make helium. U.S. Project Reaches Major Milestone toward Practical Fusion Power 2022-02-02T05:00:00Z Here, the heavy hydrogen atoms merge together in a process called nuclear fusion to make helium, a bit like the reaction that takes place in the sun. Lightweight of periodic table plays big role in life on Earth 2019-03-17T04:00:00Z Previous research on the region’s climate and plant chemistry has shown that lower precipitation rates correlate with higher ratios of heavy hydrogen, which the livestock would have consumed as they grazed during the drought. Animal fat on ancient pottery shards reveals a nearly catastrophic period of human prehistory 2018-08-13T04:00:00Z The bears were also injected with a harmless solution of heavy hydrogen and oxygen that allows scientists to calculate how much energy the bears are using during a certain amount of time. Polar bears need lots of seal snacks — and a melting Arctic makes it hard to eat enough 2018-02-01T05:00:00Z In order to work, it relied on a fission explosion that would trigger fusion in liquid deuterium, a heavy hydrogen isotope. What the First H-Bomb Test Looked Like 2015-11-02T05:00:00Z The scientists detected an increasing shift towards heavy hydrogen in the last century as the climate dried out after a wet period during the Little Ice Age from 1450-1850. Scientists predict drier Horn of Africa as climate warms 2015-10-09T04:00:00Z Hydrogen’s cousins, deuterium and tritium, called heavy hydrogen, have been used to make hydrogen bombs. Lightweight of periodic table plays big role in life on Earth 2019-03-17T04:00:00Z On Earth, three in 10,000 water molecules have the heavy hydrogen isotope deuterium. Rosetta shows Earth's water did not come from comets: study 2014-12-10T05:00:00Z When the atoms of heavy hydrogen fuse in that plasma, neutrons are released that then hit the reactor wall, heating it. Bottling the Sun's Power on Earth 2014-10-19T04:00:00Z More esoteric measurements like the levels of heavy hydrogen in the rocks could give clues to the vanishing of Mars's atmosphere over billions of years. The Lede Blog: Mars Rover Discovery Revealed 2012-12-04T21:19:40Z When the climate is drier, leaf waxes are more enriched with heavy hydrogen isotopes. Scientists predict drier Horn of Africa as climate warms 2015-10-09T04:00:00Z The core of the sphere would carry a small neutron initiator, possibly made of uranium and the heavy hydrogen isotope, deuterium. Iran?s nuclear plan revealed 2011-11-16T18:20:26.600Z One of the clouds also shows traces of deuterium, also known as heavy hydrogen, the nucleus of which contains not only a proton, as ordinary hydrogen does, but also a neutron. Fresh Start: Scientists Glimpse Unsullied Traces of the Infant Universe 2011-11-10T22:45:00.210Z D/H measures the proportion of deuterium, or heavy hydrogen, to ordinary hydrogen. Chemical analysis of a comet?s ice gives a clue to source of water on Earth 2011-10-10T19:03:21Z Specifically, the ratio of heavy hydrogen, or deuterium, to regular hydrogen was too high in the comets. New Evidence For Comet Sources Of Ocean Water 2011-10-10T17:45:00.217Z The disclosure about the atomic trigger centered on a rare material — uranium deuteride, a form of the element made with deuterium, or heavy hydrogen. Watchdog Finds Evidence That Iran Worked on Nuclear Triggers 2011-05-25T01:48:25Z It is a naturally occurring radioactive form of hydrogen, sometimes known as heavy hydrogen. Danger Posed by Radioactivity in Japan Hard to Assess 2011-03-13T05:05:30Z |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。