| 单词 | unreactive |
| 例句 | In addition to being lighter than air, helium is staunchly unreactive, making it useful for manufacturing sensitive products such as computer chips. Impending sale of scientifically critical helium sparks worries 2023-11-05T04:00:00Z "If we then offer a certain molecule, for example nitrogen, which is normally unreactive and doesn't bind, the beast is satisfied with it because it has no other choice," he says. Charged 'molecular beasts' the basis for new compounds 2023-11-03T04:00:00Z Nitrogen is very unreactive because of the very strong triple bond between the nitrogen atoms. Chemistry 2019-02-14T00:00:00Z But the development of such methods is by no means easy, because CO2 is a stable and relatively unreactive molecule. Molecular catalyst converts carbon dioxide to methanol 2019-11-26T05:00:00Z The authors report that, when used in combination with silver fluoride, this carbonate traps the typically highly unreactive CF3-containing intermediate to form a compound called a carbamoyl fluoride. Fluorinated compounds present opportunities for drug discovery 2019-09-03T04:00:00Z Well, the robot would do the experiment and the chemist would tell the robot whether the outcome of the experiment was reactive or unreactive, so whether something happened or not. Listen: AI robot mixes chemicals to discover reactions 2018-07-17T04:00:00Z It is also reasonably cheap, unreactive and easy to purify. Fundamental physics is frustrating physicists 2018-01-11T05:00:00Z Nitroglycerin is very dangerous because it explodes easily; neon poses almost no hazard because it is very unreactive. Chemistry 2019-02-14T00:00:00Z UK-based Econic Technologies has invented a way of encouraging CO2 - a typically unreactive gas - to react with the petrochemical raw materials used in the making of many plastics. From fluffy pillows to concrete: The uses of captured CO2 2017-10-09T04:00:00Z The trouble is that CO2 is a very stable, unreactive molecule. Feature: There’s too much carbon dioxide in the air. Why not turn it back into fuel? 2015-09-10T04:00:00Z But CO2 is a very stable, unreactive molecule. Designer material clears hurdle for turning carbon dioxide into fuel 2015-08-20T04:00:00Z With around 400 encoded qubits, Troyer says, it would be possible to analyse ways to improve industrial nitrogen fixation—the energy-intensive process that turns the unreactive molecule in air into fertilizer. Quest for Quantum Computers Heats Up 2014-12-04T05:00:00Z With around 400 encoded qubits, Troyer says, it would be possible to analyse ways to improve industrial nitrogen fixation — the energy-intensive process that turns the unreactive molecule in air into fertilizer. Physics: Quantum computer quest 2014-12-02T05:00:00Z By a depth of 6,000km, these chunks of falling graphite toughen into diamonds - strong and unreactive. 'Diamond rain' on Saturn and Jupiter 2013-10-14T11:04:28Z Soon, however, chemists found several other completely unreactive gaseous elements, and eventually “argon and its companions” found a place in the periodic system—they are the noble gases. The Quest to Put the Elements in Their Places 2013-01-10T18:15:00.280Z The checklist for diagnosing death includes checking for a heartbeat and breathing, and examining the eyes to check if the pupils are large and unreactive. How easy is it to diagnose death? 2012-10-17T11:31:55Z Atmospheric chemists are also fascinated by lightning because its energy plays a significant role in turning the "unreactive" nitrogen in the air into the "reactive" forms such as nitrogen oxides. Flash tools to monitor lightning 2010-12-13T17:55:04Z |
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