naa中文意思是什麼

naa解釋
NAA =National Aeronautic Association 〈美國〉全國航空協會。


    1. Nuclide identification of naa spectra by using computer

      中子活化測量譜的計算機自動識別
    2. Effect of iaa naa and b on the seeding - quality of the chrysanthemum cuttage

      對菊花扦插苗素質的影響
    3. If 0. 1mg / l naa is added in the ms medium, many roots form quickly

      添加少量的naa就可得到較多的不定根。
    4. Cotyledon and true leaves of stem mustard were cultured on ms medium supplemented with different concentrations of various cytokinins ( ba, cppu, tdz or kt ) alone or in combination with naa or iba, and the adventitious buds regeneration rate was evaluated.

      以榨菜子葉、真葉為外植體進行離體培養,用ba 、 cppu 、 tdz和kt等細胞分裂素和生長素naa 、 iba組合誘導子葉、真葉再生不定芽試驗。
    5. This paper deals mainly with the extraction of geological and hydrogeological information from deep strata through the comparative analysis of major elements, minor elements and trace elements in rocks and in relics of dried fountains by means of neutron activation analysis ( naa )

      摘要利用中子活化測試結果,對巖石及泉水乾涸殘餘物中常量及微量元素的進行分析對比,以?解深層巖體有關的地質與水文地質信息。
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