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| 41. | A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate |
| 螯合物杂环化学复合物，由一个金属离子与两个或两个以上非金属离子构成配位键 |
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| 42. | any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen) |
| （通过去氧或增氢）原子或离子获得电子的过程；总是伴随着还原剂的氧化过程而发生。 |
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