衰減常量 的英文怎麼說

中文拼音 [shuāijiǎnchángliáng]
衰減常量 英文
attenuation constant
  • 衰 : 衰動詞（衰弱） decline; wane
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  1. Some by - products of this work can be used as routine tools in the uv laser laboratory. commercial video ccd cameras are used to image uv laser and soft x rays, window glass as a fluorescer is used to indirectly measure the uv laser beam profile with high energy density, and a special glass which permits uv light to pass through while absorbs the visible, is introduced into the uv beam profiling in strong visible stray light environment

    實驗中發展了一些測量技術，例如用可見光視頻ccd直接測量紫外激光的光束分佈和激光等離子體產生的x光二維圖象，利用窗玻璃作為熒光體測量能量密度較高的紫外光束分佈，利用可見吸收紫外透射玻璃製成的衰減器測量有嚴重背景光的紫外光束分佈，可以作為實驗室的常規測量工具，並有一定的推廣價值。
  2. So in fact, if they senesce just a tiny tiny bit over time - - that is, if their half - life gets shorter, very very slowly - - we wouldn ' t actually be able to tell that this was happening in the time that we took our measurements, because the acceleration in the rate of atoms decaying ( relative, of course, to the number that had not decayed already, which is always decreasing ) would be too tiny to be statistically detectable

    所以在事實上，如果它們隨時間衰老得只那麼一點點， ?就是說，如果它們的半衰期縮短得非常慢?那麼我們實際上不可能知道，在我們測量期間發生過衰減，因為原子衰減的速率加速得太小，統計學上檢測不出（當然，是相對于不曾衰減的數目而言，不曾衰減的原子數目總是在減少） 。
  3. The study shows that the early and late seed rains of constructive tree species in evergreen broadleaved forest at chongqing simian mountain had no activity. the bigger the seeds of the species and the earlier or later the seeds of the species matured, the higher the proportion of the seed rain damaged by animals. the quantitative variation of seed rain, active seed rain and seed bank did not take place at the same time. at early time, the number of seed banks of castanopsis fargesii, lithocarpus glabra, quercus myrsinrefolia, castanopsis plasyacantha, cinamomum subavenium. which own more active seed rain increased by geomitric series. the seed banks of castanopsis orthacantha and schima argentea were small, only survived a short time, and did not sprout next year. the quantitative dynamics of seed banks and their increasing or decreasing rates were decided by the proportion damaged by animals, dying speed of seeds and their resistance to pathogens and adverse circumstances, and the state of seed germination

    對重慶四面山常綠闊葉林建群種種子雨、種子庫的研究表明，建群種早期和晚期的種子雨無活力;種子偏早或偏晚成熟及大籽粒的樹種，其種子雨被取食的比例大;種子雨、有活力種子雨、種子庫三者的數量變化不一致;有活力種子雨量較大的栲、石櫟、小葉青岡、扁刺栲、香桂等，其種子庫密度在早期以近幾何級數的方式增長，元江栲、銀木荷種子庫小，存在時間短，翌年無一年生萌發苗;種子庫數量動態、消減率動態決定於種子被取食的強度、種子衰老的速度以及種子對病菌、逆境的抗性和種子萌發的整齊性
  4. Thus, there was a large quantity of land left uncultivated, an overall decay of economics, a deteriorating of social security as well as many up - risings of peasants

    慘烈的自然災害造成百姓生活困苦不堪，人口銳減；土地大量荒蕪，社會經濟全面衰敗；社會治安惡化，秩序混亂；農民的反抗斗爭異常激烈。
  5. Characteristics : contain gtece pure natural olive branch extracts, milk protein and natural baihuacon centracted juice and grasses. natural lubricating ingredients can help to clean the dirty things completely, teduce ftee - radical which will make skin aged, resist itchy, bad smells, activate the skin, make up water andnutrents, recover white and tendetr, soft and flexibility. frequent use can keep the fragtant smells last for a long time, come out charming appearance

    特點：蘊含萃取自希臘的純天然橄欖枝精華滋養成分、牛乳蛋白及天然百花草原液，配以天然的潤膚成分，徹底清潔皮膚污垢，減少令肌膚衰老之游離基的出現，同時抑制瘙癢、異味，有效活化肌膚，並大量補充肌膚所需養分及水份，恢復肌膚白皙嫩滑，柔軟富有彈性，經常使用，持久保留馨逸幽香，肌膚持久亮麗，散發迷人的自然魅力。
  6. Meanwhile we find that decay constant fn and the tt mass mv monotonously decrease as nuclear matter density increases

    我們同時發現介子的衰變常數f _和質量m _隨著核物質密度_ n的增加而單調遞減。
  7. A fitting curve between the decay time constant and the film thickness of ybco was obtained, and the film thickness can be obtained from the fitting

    另外還作出了ybco薄膜的薄膜厚度與衰減時間常量之間的關系曲線，提出了測量ybco薄膜厚度的一種新方法。
  8. In the above equation, a0, a1 and a2 are known as the attenuation constants

    在上述的方程式中， a0 ， a1及a2都是已知的衰減常量。
  9. The use of mc33291 chip improves the performance of the device. moreover, for data disposal, we select the algorithm of the combination of fourier and difference algorithm. in the end, we present the interference - free methods in software and hardware of devices

    此外，交流量採集完成後數據的處理將尤為重要，本文提出了用差分法消除傅氏所不能濾除的衰減直流分量，採用傅氏和差分相結合的演算法;對于保護中經常遇到的開方運算，提出了逐次比較法對其進行計算。
  10. We first give a proof of the global existence and uniqueness of solution for the problem by useing of a " stable set " method. moreover, we treat the so - called h2 - solutions instead of usual energy finite solutions and derive a precise decay estimate for the energy

    文中採用「穩定集」的方法得此問題解的整體存在性及唯一性，並且運用h ~ 2空間取代通常的能量解得到了能量衰減估計
  11. It uses the encouragement of step wave or other impulse current field source to produce the transition process field in earth. in the moment of shutting the power it produce the volute alternating electromagnetic field. from the abnormity of measuring the attenuation character of the second induction electromagnetic field, which produced by underground medium with time change, the conductive capacity and the position of the underground non - homogeneous substance can be analyzed

    瞬變電磁法（ transientelectromagneticmethod ）是一種時間域的電磁勘探方法，利用階躍波或其它脈沖電流場源激勵，在大地產生過渡過程場，斷電瞬間在大地中形成渦旋交變電磁場，測量這種由地下介質產生的二次感應電磁場隨時間變化的衰減特性，從測量得到的異常分析出地下不均勻體的導電性能和位置，從而達到解決地質問題的目的。
  12. In the optical fiber transmitting system, attenuation of fiber affects transmitting efficiency directly, the lower attenuation is very important because it affects the sensitivity frequently. the choice of join form and fixation method is also important for it will make large wastage. so we must pay attention to the join and fixation form when designing sensors

    從分析中得出，在光纖傳輸系統中，光纖的衰減直接影響光纖的傳輸效率，低衰減特性非常重要，因為它常常會影響測量靈敏度；光纖與光探測器之間的連接形式和固定方法如果選擇不好也會造成較大損耗，為此在設計傳感器的同時，特別注意了與光纖的連接和固定方式。
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