The carbon arc discharge method is the most common and easiest way to produce CNTs,

English as a Second Language English Vocabulary, Grammar and Idioms
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The carbon arc discharge method is the most common and easiest way to produce CNTs, but it produces a complex mixture of components and requires further purification to separate the CNTs from the soot and the ..... catalytic metals present in the crude product. (*) recovered (*) recrudescent (*) resident (*) residual

This is a companion discussion topic for the original entry at https://english.best/questions/9357,the-carbon-arc-discharge-method-is-the-most-common-and-easiest-way-to-produce-cnts-but-it-produces-a-complex-mixture-of-components-and-requires-further-purification-to-separate-the-cnts-from-the-soot-and-the-___-catalytic-metals-present-in-the-crude-product/
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The carbon arc discharge method is the most common and easiest way to produce CNTs, but it produces a complex mixture of components and requires further purification to separate the CNTs from the soot and the residual catalytic metals present in the crude product.

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