major degradation 中文意思是什麼

major degradation 解釋
主行列式
  • major : adj （opp minor）1 較大的；較多的；較優的；主要的；第一流的；較大范圍的。2 成年的；〈英國〉（學校...
  • degradation : n. 1. 降級；免職。2. 退化；墮落。3. 【地質學；地理學】（地表的）剝蝕。4. 【化學】降解，遞降分解（作用）。5. 【物理學】（能的）退降。
  1. However, most of the natural antioxidants lost activities, resulting from exerting healthy functions. they were fairly unstable during harvesting, transportation, storage and processing of plant food. for instance, oxidative browning of phenolic compounds is a major cause of quality degradation of fruit and vegetable - derived foods

    兒茶素類天然抗氧化劑在發揮其天然抗氧化保健作用的同時，其自身往往氧化成低活性甚至沒有活性的氧化產物，特別是在天然植物原料加工過程中，這些天然抗氧化劑發生的自動氧化對其活性損失很大，因此，了解影響兒茶素自動氧化的因素，並尋找避免兒茶素自動氧化的方法以期提高其活性是醫學界和食品營養界一直關注的課題。
  2. The current "high-tech" agricultural production system is a major source of environmental degradation in the united states.

    當前高度技術化的農業生產體系是美國環境變劣的一個主要根源。
  3. The seismic behavior of longitudinal middling - high r. c shear wall with frame column is discussed through model experimentations and finite element methods in this paper, after taking frame - shear wall structure of a main factory building of the large capacity power plant as experimentative prototype. the major work as follow : in order to appliance pseudo static test, the longitudinal middling - high r. c shear wall with frame column in the large capacity power plant ' s main factory building has been simulated to a model structure with 1 / 15 reduced - scale. the contents of study are process of cracking, course of damage, skeleton curve, rigidity degradation, ductility characteristic etc. that the seismic behavior of this kind of middling - high r. c shear wall is excellent has been proved by chubby hysteretic curve and fine capacity of energy dissipation

    本文以某大型火電廠主廠房縱向框架一剪力墻結構為原型，通過模型試驗和有限元分析，研究了縱向帶邊框柱中高剪力墻結構的抗震性能問題，主要內容有：選用1 15縮尺比把某大型火電廠主廠房縱向帶邊框柱剪力墻原型結構模擬為一個模型結構，並進行了偽靜力試驗，研究了這類縱向帶邊框柱中高剪力墻結構的開裂與破壞過程、骨架曲線、剛度退化、延性性能等問題，試驗滯回曲線飽滿，消能能力強，說明此類中高剪力墻的抗震性能較好。
  4. In high - power solid - state lasers, self - focusing is the major factor for degradation of laser beam and limits the maximum laser power available. as stated in lowrence livermore national laboratory ( llnl ) reports, self - focusing, especially small - scale self - focusing, has always been a significant problem in the total design, engineering development, and safe operation of fusion lasers

    在用於慣性約束核聚變（ icf ）的高功率固體激光驅動器中，自聚焦是使光束質量變壞和限制輸出功率的主要因素，正如美國勞侖斯?利弗莫爾國家實驗室（ llnl ）的報告所述，自聚焦，特別是小尺度自聚焦，是聚變激光器總體設計、工程研製和安全運行的重要問題。
  5. A major limitation of piezoceramic actuators is their lack of accuracy due to the hysteresis nonlinearity which can result in the degradation of system performance and even lead to instability

    摘要由於壓電陶瓷執行器固有的遲滯非線性會影響系統的控制精度，甚至能導致系統不穩定，基於神經網路建立一個遲滯非線性的智能模型。
  6. Solomon systech limited is the major sponsor. wwf launched " ocean s 10 " last june to provide interactive education programmes based on ten selected marine species that live in hong kong waters. this 3 - year education programme has been designed to enhance public understanding of hong kong s marine conservation issues, such as environmental degradation, unsustainable harvesting and pollution, by running a series of interactive education programmes on selected species

    世界自然基金會于去年6月推出為期3年的海洋十寶教育項目，以10種棲居本港水域的海洋生物為主角，希望透過推行一系列與這十寶相關的有趣互動教育活動，加強市民認識香港海洋保育的問題，其中包括生境質素下降以不符合可持續原則的模式開采資源，以及污染問題等。
  7. This paper is focused on images watermarking algorithms. watermark casting operates in frequency domain, embeds pseudo - random sequence of real number in selected coefficients without image degradation. a blind watermark retrieval technique that can detect the embedded watermark without resorting the original image is proposed, so that the proposed techniques represents a major improvements to those relying on the comparison between the watermarked and original image, which is not practical for a huge image database

    本文主要研究針對圖像水印系統的演算法研究，採用偽隨機序列作為水印信號，利用變換域系數作為水印的載體，在不降低圖像質量的前提下達到嵌入水印的目的，在恢復水印的過程中無需原始圖像的參與，相比較那些需要利用原始圖像恢復數據的系統，文中所提出的方案更具有實用性。
  8. In this part, the issues and mechanism of light degradation of b - doped p - type cz - si solar cells are introduced firstly, it was clarified that boron and interstitial oxygen are major components of defect center for light degradation of b - doped cz - si solar cells. then in the experiment the b - doped cz - si is chosen as the substrates and annealled at different temperature

    文中首先介紹了摻硼單晶硅太陽電池的光照衰減問題及衰減機制，然後以p型摻硼單晶硅為實驗樣品，經過不同溫度的熱處理，對影響光衰減的主要因素硼、氧進行了研究。
  9. This would cause major performance degradation, and lead to longer response times from the server

    這會造成性能急劇下降，並且服務器響應時間會加長。
  10. Protein degradation is one of the major regulatory processes that allow the adaptation, repair, or removal of mutated or damaged thylakoid proteins during environmental or developmental changes. intracellular proteases play an essential role in the turnover of intracellular proteins

    在光合作用中，葉綠體類囊體膜蛋白復合物進行光能的吸收、傳遞和轉化，水的裂解及光合磷酸化等，這些膜蛋白的周轉更新需要蛋白酶的作用。
  11. The approach to restore the zonal ecology was probed according to the basic characteristics, current status of degradation and the major degradation factors of each restoration zone

    根據各恢復區的基本特徵、退化現狀和退化主導因子的分異，探討了區域生態恢復途徑。
  12. The essay bases on modern western economics and new institution economics. beginning with the reasons which lead to the agricultural environment pollution, the essay made a conclusion that the failure of agricultural environment property is the root causes of agricultural environmental degradation through studying deeply. next the essay focused on two major issues : agricultural environment property rights and its system initiates

    本文以當代西方經濟學、新制度經濟為主要基礎理論依據，首先從造成農業環境污染的表層原因? ?農業環境外部性入手，層層剖析，進而分析出農業環境產權失靈才是導致農業環境惡化的根源，接下來，文章重點圍繞農業環境產權及其產權制度這兩大問題展開了討論。
  13. The ubiquitin - proteasome proteolytic pathway, a major pathway for protein degradation in cells, plays a critical role in the protein metabolism

    摘要泛素介導的蛋白質降解途徑是降解細胞內蛋白質的主要途徑，在維持細胞正常的蛋白質代謝中起著至關重要的作用。
  14. China ’ s rapid industrialization in the last decades has engendered serious problems of depletion of natural resources, degradation of major ecosystems, and pollution extending far beyond its borders. development based on ce concept will be essential for china to reach an overall well - off society by sustaining fast - paced economic growth while mitigating negative ecological impact and creating more job opportunities

    本文在系統梳理循環經濟內涵及其運行規則的基礎上，對我國發展循環經濟的重要意義、現狀與問題展開了深入分析，並借鑒歐盟部分國家發展循環經濟的經驗，最後提及了我國發展循環經濟的具體對策。
  15. Resource exhaustion, environment degradation and population explosion constitute the three major global problems confronting human beings, while space technology might become an important instrument of solving these problems

    資源枯竭、環境惡化、人口激增，是當今人類面臨的三大全球性問題，而航天技術可能成為解決上述問題的重要手段。
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