Oxygen atoms are very reactive chemically. We call them electrophilic or “electron loving” because the oxygen atom seeks to bind to other electron-rich sources, especially itself. Thus oxygen is present in our atmosphere primarily as the molecularO₂. Another Form A small percentage of atmosph...
oxygen什么意思oxygen 英英释义 noun 1. a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas constitutes 21 percent of the atmosphere by volume the most abundant element in the earth's crust Synonym: Oatomic number 8...
美[ˈɑksɪdʒən] 英[ˈɒksɪdʒ(ə)n] n.氧;氧气 网络强氧;极速杀阵;氧气瓶 权威英汉双解 英汉 英英 网络释义 oxygen n. 1. 氧;氧气a chemical element. Oxygen is a gas that is present in air and water and is necessary for people, animals and plants to live....
Ultimately, after reintroducing the sensor into the atmosphere, the oxygen present in the air is adsorbed onto the gas-sensing material’s surface and undergoes a conversion into surface lattice oxygen and chemically adsorbed oxygen. Compared to the conventional hydrogen sensing mechanism, the lattice ...
1. a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust 同义词 air 行业词典 医学 氧:一种气体元素,游离存在于空气中和结合于大多数非元素的固体、液...
noun ,Chemistry. a colorless, odorless, gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature. It is the supporter of combustion in air and was the standard of atomic, combining, and molecular weights until 1961, when carbon 12...
Measurements at an m/e value of 52 are integrated over a period of time. The results of the integration, when compared to a calibration chart, indicate the amount of water that had been present in the atmosphere being measured.Timothy W. CarrEdwin A. CorlCarl G. Majtenyi...
Low oxygen atmosphere initially increases the survival and multiplication of putative goat embryonic stem cells 来自 Semantic Scholar 喜欢 0 阅读量: 26 作者:GB Udy,DN Wells 摘要: Low oxygen atmosphere initially increases the survival and multiplication of putative goat embryonic stem cells - ...
Vegetation in an Atmosphere Devoid of Oxygen, and Considerations on the Dawn of Animal Life 喜欢 0 阅读量: 10 作者: Phipson,T.,L. 摘要: I N various papers published in the Chemical News during the present year, I have endeavored to show that in the earliest ages of the earth, when...
However, it is noteworthy that there are other water-derived ions present in the coma, which can participate in similar ER reactions on the nucleus surface. For example, the extended coma also contains abundant H3O+, OH+ and O+ (ref. 36), all of which can be picked up by the solar ...