| 单词 | nitrogen fixation |
| 释义 | > as lemmasnitrogen fixation nitrogen fixation n. the conversion, esp. by bacteria, of gaseous nitrogen into a combined form that is usable by plants. ΘΚΠ the world > life > biology > biological processes > metabolism > [noun] > metabolic processes metastasis1861 respiration1882 nitrogen fixation1893 turn-over1943 the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > fixation > of nitrogen fixation1850 nitrogen fixation1893 1893 Amer. Naturalist 27 1053 The germ theories of fermentation, of nitrification, of sewage filtration, of nitrogen fixation, of the etiology of contagious diseases..are monumental witnesses of the value of this department in the realm of pure science. 1938 Nature 12 Nov. 878/1 Diverse workers..have previously affirmed nitrogen fixation by Blue-green Algæ. 1970 Sunday Times 16 Aug. (Colour Suppl.) 13/1 It is likely that Germany would have collapsed before 1918 but for the nitrogen fixation plants built in 1914–16. < as lemmas |
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