beta activity 中文意思是什麼

beta activity 解釋
b放射性
  • beta : n. 1. 希臘字母第二字 [B,β]。2. 第二位的東西。3. 【天文學】β星〈星座中第二等最亮的星〉。
  • activity : n. 1. 活動；活躍；動作；活動力；能動性。2. 活性；放射性。3. 機能，功能。4. 〈美國〉機構。5. 〈pl. 〉 活動范圍。
  1. Nuclear energy - measurement of radioactivity in the environment - water - part 1 : measurement of strontium 90 activity in water - radiochemical separation of strontium by nitric acid and measurement of yttrium 90 beta activity

    核能.環境中放射性的測量.水.第1部分:水中鍶90放射性測定.用硝酸對鍶進行放射化學分離和釔90放射性的測量
  2. Nuclear energy - measurement of radioactivity in the environment - water - part 3 : measurement of strontium 90 activity in water - radiochemical separation of strontium by extraction with " ethers crown " resin and measurement of beta activity

    核能.環境中輻射性的測量.水.第3部分:水中鍶90放射性的測量.通過" ethers crown "樹脂萃取進行鍶的放射化學分離和放射性的測量
  3. At ping chau in mirs bay to continuously monitor the environmental radiation. the 15 - minute averaged gross alpha and gross beta activity concentrations, the 10 - minute iodine - 131 activity concentrations, as well as the 2 - hour gamma spectrometry analysis data are automatically telemetered to the central station at the hko headquarters

    當中包括每十五分鐘平均的總阿爾法及總貝他活度濃度、每十分鐘平均的碘- 131活度濃度，以及每兩小時的伽馬譜法分析資料。
  4. The suitable steaming and support treatment on zeolite beta can obviously increase the hydration activity of catalysts, and the introduction of sillica enhances the steaming stability of zeolite beta

    對沸石進行水熱處理和不同粘合劑改性，能提高其丙烯水合反應活性；氧化硅的引入能明顯提高催化劑的活性和水熱穩定性
  5. The survey team conducts surveys along pre - designated survey routes in the northeast part of the new territories. it measures ambient gamma dose rates, surface activity concentrations of beta emitters at ground surface and in - situ gamma spectrum of land soil

    流動巡測隊會沿新界東北部預先選定的測量路線，在不同位置量度環境伽馬輻射劑量率、地面的貝他放射體的表面活度濃度和原位置土壤的伽馬能譜，以及收集大氣飄塵、放射性碘、擦拭及其他環境樣本。
  6. Nuclear energy - measurement of radioactivity in the environment - water - part 2 : measurement of strontium 90 activity in water - organic solvent extraction of yttrium 90 and measurement of beta activity

    核能.環境中放射性的測量.水.第2部分:水中鍶90放射性測定.釔90的有機溶劑萃取和放射性的測量
  7. Most s. pneumoniae isolates were at least intermediately resistant to penicillin, and 10. 1 % of h. influenzae showed beta - lactamase activity

    大多數s .肺炎隔離群對青霉素的抵抗都致少居中，並且10 . 1的h .流感顯示了-內酰胺酶活性。
  8. The toxicity measurement indicates that the mixtures of 5 % chlorfluazuron and 4. 5 % beta - cypemethrin at the four ratios all had significant synergistic activity and the 39 % chlorfluazuron + 6 % beta - cypermethrin is the highest one, the ctc was 367. 22

    室內毒力測定結果表明， 5 %定蟲隆與4 . 5 %高效氯氰菊酯4種混劑對小菜蛾均有顯著的增效作用，其中混配2的增效作用最顯著，其共毒系數最高為367 . 22 。
  9. Nuclear energy - measurement of environmental radioactivity - water - measurement of global beta activity index in terms of strontium 90 and yttrium 90 equivalent in low salted water

    核能.環境放射性的測量.水.根據低鹽水中的鍶90和釔90當量測量總的活性指數
  10. Nuclear energy. measurement of radioactivity in the environment - soil. part 5 : methodolgy for alpha global activity in terms of 239 pu equivalent and beta global activity in terms of 90 sr and 90 y equivalent in soil samples

    原子能.環境土壤中放射性的測量.第5部分:土壤樣品中以239pu值換算整體活性以90sr和90y值換算整體活性的方法
  11. Genetic studies suggest that blocking the enzyme ' s activity will not lead to harmful side effects ; deletion of the gene encoding beta - secretase in mice eliminated a - beta formation in the rodents ' brains without causing any apparent negative consequences

    遺傳研究的結果暗示，阻斷這個酵素的活性，並不會造成有害的副作用；移除小鼠的分泌酶基因，小鼠的腦部就無法製造出a - ，但卻不會造成任何明顯的負面後果。
  12. Nuclear energy - measurement of radioactivity in the environment - water - part 2 : beta emiters activity measurement by liquid scintillation - particular case of carbon - 14

    核能.環境放射性測量.水.第2部分:通過液體閃爍對輻射物活性測量. c14用特殊盒
  13. Nuclear energy - measurement of radioactivity in the environment - water - part 1 : beta emitters activity measurement by liquid scintillation - particular case of tritium

    核能.環境放射性的測量.水.第1部分:通過液體閃爍對輻射物活性的測量.氚用特殊盒
  14. Nuclear energy - measurement of radioactivity in the environment - water - part 3 : beta emitters activity measurement by liquid scintillation - particular case of simultaneous presence of tritium and carbon 14

    核能.環境放射性測量.水.第3部分:通過液體閃爍測量輻射物活性.同時出現氚和c14的特殊情況
  15. Activity measurement methods for the release of radioactive residual materials and decommissioning components of nuclear facilities ; with beta - gamma activity contaminated scrap metal

    核設施放射性殘余物質和退役零件排放用放射性活度測
  16. This changes the level of brain wave activity from the awake level ( beta ) to the asleep level ( alpha ) or the deep sleep level ( theta )

    這使大腦清醒狀態時的腦波活動貝塔狀態改變至睡眠層次（阿爾法）或深度睡眠狀態（太塔， ） 。
  17. Activity measurement methods for the release of radioactive residual materials and decommissioning components of nuclear facilities ; principles for beta and gamma radiation measurements

    核設施放射性殘余物質和退役零件排放用放射性活度測
  18. Radiation protection instrumentation - portable equipment for measuring specific activity of beta - emitting radionuclides in foodstuffs

    輻射防護儀器.測量食品中輻射放射性核素具體放射性用便攜式設備
  19. Given the critical role of a - beta in the disease process, the proteases that produce this peptide are obvious targets for potential drugs that could inhibit their activity

    知道了a -在阿茲海默癥所扮演的關鍵角色，那麼會製造這個勝肽的蛋白酶就是明顯的目標，可以設法研發藥物，抑制這類蛋白酶的活性。
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