Chemistry. The self-perpetuating step or steps in a chain reaction, in which product molecules are formed or polymer chains lengthened by a process…
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| 单词 | θ67927 |
| 释义 | the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions (general) > chain reaction > propagation (1) propagation1926 Chemistry. The self-perpetuating step or steps in a chain reaction, in which product molecules are formed or polymer chains lengthened by a process… |
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