英语词汇“carbon cycle”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	carbon cycle
释义	carbon cycle 1. Ecol. the circulation of carbon atoms in the biosphere as a result of photosynthetic conversion of carbon dioxide into complex organic compounds by plants, which are consumed by other organisms: the carbon returns to the atmosphere in the form of carbon dioxide as a result of respiration, decay by fungi, bacteria, etc., and combustion of fossil fuels. 2. Astrophysics. a cycle of nuclear transformations in the interiors of the stars by means of which hydrogen is gradually converted into helium with the release of nuclear energy. [1910-15]
随便看	intrenching tool intrepid Int. Rev. intricacy intricate intrigant intrigue intrinsic intrinsic factor intrinsic parity intro intro- intro. introduce introduction introductory introgression introit introject introjection intromit intron Intropin introrse introspect

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