| 词汇 | barium-sulphate |
| 释义 | barium sulphate noun[ U ] UK(USbarium sulfate)uk /ˌbeə.ri.əm ˈsʌl.feɪt/ us /ˌber.i.əm ˈsʌl.feɪt/ a chemical used in industry and medicine硫酸钡 Chemicals, chemical compounds & gases acetic acid acetone acrolein acrylamide activated charcoal adenine agglomerate ethyl alcohol H2O HCFC HFC hyaluronic acid hydrochloric acid hydrochlorofluorocarbon laughing gas limescale metho meths oxyacetylene tartaric acid Collect, wash, dry, ignite, and weigh the barium sulphate. In determining it, it is first converted into sulphuric acid, and then precipitated and weighed as barium sulphate. Moreover, the use of hot concentrated hydrochloric acid causes a loss by dissolving barium sulphate. Six parts by weight of pure glycerine, four parts by weight of water, two parts of barium sulphate, and one part of sugar. Examples of barium sulphatebarium sulphate Readings were standardized for 100% reflectance with bariumsulphate. The reference was a bariumsulphate standard plate. Pressed bariumsulphate was used as a working standard for the calibration of 100% reflectance. Supplies of bariumsulphate, mainly from home sources, are sufficient to meet all requirements. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is composed of zinc sulphide and bariumsulphate. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Higher levels of the vein also contained quantities of baryte (bariumsulphate), although at the time this had no commercial value. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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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