| 词汇 | graphite |
| 释义 | graphite noun[ U ] uk /ˈɡræf.aɪt/ us /ˈɡræf.aɪt/ a soft, dark grey form of carbon, used in the middle of pencils, as a lubricant in machines, and in some nuclear reactors石墨 Geology: mineralogy beneficiation crude crystal crystalline deposit gemologist gemology gold dust idiomorphic intercrystalline magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity graphite | American Dictionarygraphite noun[ U ] us/ˈɡræf·ɑɪt/ a soft, dark gray form of carbon used in the center of pencils which makes a mark when pressed against something Examples of graphitegraphite Simple generation and detection of polyynes in an arc discharge between graphite electrodes submerged in various solvents. Writing is best done with a fairly soft black graphite pencil. We see that fully closed pore graphites prevents this contribution to hydrogen isotope inventory because there is no continuous surface leading deep into the graphite. The advantage of graphite blanket is to exhibit 1ow activation, and in the case of the accident, released radioactivity is greatly reduced. The mineral assemblage of the studied calcschist (sample 1435) comprises calcite, quartz, phengite, chlorite, albite and graphite. The dicyanopolyyne series can be easily produced by arcing graphite electrodes into liquid nitrogen. Direct observation of mosaic blocks in highly oriented pyrolytic graphite. The graphite moderates the neutrons below activation energy levels. Metasedimentary samples from the southeastern portion are represented by graphite schist and metapelite. This consists of a graphite core surrounded by a layer of paste particles that becomes firm during baking. This graphite blanket has many holes of small diameter and helium gas as a coolant passes through them. Empirical three-body potentials are also used to simulate materials such as graphite. Neutrons carry their energy into the graphite blanket and are stopped. They are stooped mainly in graphite blanket and heats up the graphite. There is a helium gas manifold to cool the graphite. 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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