| 词汇 | sulfur |
| 释义 | sulfur noun[ U ] uk /ˈsʌl.fər/ us /ˈsʌl.fɚ/ US spelling ofsulphurmainly UK（sulphur的美式拼写） Chemical elements actinium alkali metal americium astatine berkelium brimstone bromine calcium fluorine germanium iodine lithium manganese nickel plutonium quicksilver selenium sodium transition metal zinc sulfur | American Dictionarysulfur noun[ U ] (alsosulphur, us/ˈsʌl·fər/)us/ˈsʌl·fər/ a pale yellow chemical element with a strong smell that is found in various physical forms and burns with a blue flame Examples of sulfursulfur The taxa analyzed include representatives from cyanobacteria, green sulfur, green non-sulfur and purple bacteria. Glucosinolates consist of a glucose molecule, a sulfur moiety, and a side chain, the composition of which determines their properties. These differences are also consistent model predictions of sulfur isotope fractionations produced by biosynthetic networks. They contain clusters of iron and sulfur atoms with variable nuclearity and complexity. This was due to the use of wettable and dusting sulfur (a miticide) in organic fields, which was the only pesticide used by organic growers. Most of these organisms are anaerobes which use inorganic redox reactions of molecular hydrogen, carbon dioxide, iron-, nitrogen-, or sulfur compounds as energy sources. Figure 1a shows that the relationship between sulfur dioxide concentrations and freedoms is nearly linear. They contribute 16 per cent of all particulate matter pollution, and 43 per cent of all sulfur dioxide. Sodium and sulfur are very soluble, and therefore mobile, while calcium is less soluble and mobile. However, we find unexpected complexity in the sulfur cycle in a chemoautotrophically-based cave ecosystem. In 1979, an air quality standard for sulfur dioxide was established. The precipitated metals can subsequently be involved in reactions of the sulfur cycle. This classification is based on the sulfur content because this is the element that makes a fuel more or less contaminating. There are, however, few studies about the effect of backwash on sulfur packed-bed reactors. On the other hand, performance of the baghouse is not sensitive to the sulfur content of the coal. See all examples of sulfur These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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