| 词汇 | flame-test |
| 释义 | flame test noun[ C ] chemistry specializeduk /ˈfleɪm ˌtest/ us /ˈfleɪm ˌtest/ a method used by scientists to discover whether a substance contains metal ions焰色试验，火焰试验法（用来测试物质中是否含有某种金属的方法） Laboratory equipment aspirator bell jar bubble chamber Buchner funnel Bunsen burner calorimeter condenser evaporating dish flask litmus microscope particle accelerator photometer pipette retort stand scope siphon synchrotron test tube transducer At one end, on the ground floor, is the exposing and recording apparatus for flame tests of explosives, also pressure gauges, and a calorimeter, and, at the other end, is a gallery for testing safety lamps. Examples of flame testflame test The first was that the means already exist to fireproof up to the standards specified in the regulations, including the flametest. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 That is but one reason why she must restore the flametest to the regulations immediately. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Therefore, it would be wise if we saw a date when the open flametest might apply. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 That is one reason why the flametest should be included. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I regret that the regulations do not give the protection that would have been given had the naked flametest been included. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I give him the undertaking which he sought that the flametest will be introduced as soon as possible. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Such a naked flametest would complement the existing cigarette test. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The flametest is in many ways more important than the cigarette test. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I am sure that it would not be imposible or even dauntingly difficult for the industry to comply with the flametest standard. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 If no material passes the naked flametest, the choice is either to flout the regulations or virtually to destroy or do serious damage to an important industry. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The regulations were drawn up a year ago, and it was seen fit to include the flametest and the smouldering cigarette test side by side. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We should not give anyone the impression that if upholstered furniture which contains polyurethane foam has passed the cigarette test and/or the flametest there is no danger. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The principle of the atomic emission spectrum explains the varied colors in neon signs, as well as chemical flametest results (described below). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In principle, it is a controlled flametest with the intensity of the flame colour quantified by photoelectric circuitry. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The flametest is relatively quick and simple to perform, and can be carried out with the basic equipment found in most chemistry laboratories. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of flame test 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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