na-test 中文意思是什麼

na-test 解釋
去甲腎上腺素試驗
  • na : NA ＝〈美國〉 National Archives 國家檔案館。Na ＝【化學】 natrium （〈拉丁語〉＝sodium）。
  • test : n 1 檢驗，檢查；考查；測驗；考試；考驗。2 檢驗用品；試金石；【化學】試藥；（判斷的）標準。3 【化...
  1. The results indicated that : jaj could selectively stimulate the reprduction of bifidobacteria in vivo and inhibit the growth of e. coli which is a main parasitic basterium in human intestinal tract ; moreover, jaj could apprarently improve intestinal tract function. in tested group, the mice excreted smoothly and the faecal particles of mice were big and wet, but in control group, the faecal particles of mice were small and dry. lt was suggested that inulin may be the important effective component in jaj which promoted the reprduction of bifidobacteria in vivo. at last, the effects of ja on the bile salt resis tance of bifidobacteria were studied. the test proved that : deoxycholic acid na - salt ( dca - na ) had intensely toxical action on blm and bbm ; adding glucose and fructose in media could decrease the lexical action on bbm. but inulin and jap had not apparent effect

    在通過單菌株檢驗和混菌檢驗確立了一種選擇性雙歧桿菌培養基之後，進一步以健康昆明系小鼠為實驗動物，研究了菊芋在動物腸道內對雙歧桿菌的影響，動物實驗結果表明，菊芋汁在體內對雙歧桿菌有選擇性促進生長作用，而腸道中主要條件致病菌?大腸桿菌的生長受到抑制；菊芋中的菊糖成分可能對菊芋在體內選擇性地促進雙歧桿菌生長起了主要作用；此外，菊芋還具有明顯的整腸作用，同對照組相比，飼喂菊芋汁的小鼠排便順利，糞便顆粒大且濕潤。
  2. On the basis of this test, we studied the mechanism that the alkli elements ( such as k, na, ca ) control the crystallization of sapphire

    在此基礎上討論了k ， na ， ca等堿質元素對于藍寶石結晶的控制機理。
  3. Finally, after the long - term ion migration test, we analyzed the relation between the current and accumulative charge with the test time, computed the ion mobility and migration distance, and analyzed the distribution variety of na + and k + in the test samples

    對10支試品進行了長期離子遷移試驗，測量了泄漏電流曲線和累計電荷量隨時間變化曲線，計算了試品的離子遷移率和遷移距離，並對試品na ~ + 、 k ~ +的含量進行了化學分析。
  4. Abstract : based onmethods of foreign countries of using wi nd tunnel test and numerical flow simulation, optimum nose a nd tail shapes ofhigh - speed trains are studied to achieve optimum aerodynamic performance so as to efficiently reduce the influence of theaerodynamic phenome na on the train operation and the environment. research results of foreign countr ies are introduced

    文摘:針對國外利用以風洞模型模擬試驗和以流場數值模擬計算為主的方法來尋求高速列車最佳的頭尾部形狀，使列車的綜合氣動性能最佳，從而有效地降低空氣動力學現象對列車運行和周圍環境的影響進行了探討，介紹了國外在此方面取得的主要成果。
  5. We try the unsupervised wsd method based on equivalent pseudowords by the na ? ve bayes model and maximum entropy in paper. it gets 81 % correct rate on the test data of senseval - 3, which is obvious better than supervised method accordingly

    利用得到的兩種較優的機器學習方法:貝葉斯模型及最大熵模型，本文嘗試了基於等價偽詞的無指導詞義消歧方法，在senseval - 3的測試數據上獲得了81 %的正確率，明顯優于相應的有指導方法。
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