survival ratio 中文意思是什麼

survival ratio 解釋
存活比
  • survival : n 生存;殘存;倖存;殘存者;成活(植株);殘余,殘存物,遺物,遺風。 the survival of the fittest ...
  • ratio : n. (pl. ratios)1. 比,比率,比值;比例;系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達;求出…的比值;使…成比例。2. 將(相片)按比例放大或縮小。
  1. The process of initial culture showed quite difference in various hostas. h. ventricosa and h. " so sweet " were easier, while h. " frances williams " and h. " gold standard " were difficult. using shoot tip ( peak bud ) as explant was proved the effective method for improving survival ratio when hostas would defoliate or have defoliated in autumn or winter rather than in summer

    玉簪屬不同種類的組培初代建立存在著一定的差異,如h . ventricosa和h . 『 sosweet 』較容易建立,而h . 『 franceswilliams 』和h . 『 goldstandard 』比較困難;應在冬季玉簪屬植物將要落葉或已落葉后取莖尖(頂芽)進行初代建立,最好避開夏季,來提高初代建立的成活率。
  2. Techniques of increasing survival ratio of big tree transplanting

    提高大樹移植成活率的技術措施
  3. This ratio will guarantee maintenance of natural processes, ensuring the survival of fish stocks

    這比例將可維持天然的生態演化過程,以確保漁業資源不會枯竭。
  4. Effects of na k ratio in brackish water on survival and growth of litopenaeus vannamei

    對凡納濱對蝦成活率和生長的影響
  5. The paper is divided into three sector : in the first sector, base on cohort - component method and via quantitative analysis and qualitative analysis to matter of fact, the paper imports several variable : accelerating function of survival rate, correct children women ratio, proportion of infants, and establish correct cohort - component method. in the second sector, base on several hypothesis, zhejiang province population forecasts are made by correct cohort - component method, and population composing are presented in the future. in the third sector, base on results of zhejiang province population forecasts, the paper discusses change trend of mainly population index in the 21 century, and analyzes how population trend effects development of society and economy

    本文分三部分進行:第一部分,在隊列要素法的基礎上,通過對實際情況的定量分析與定性分析,在模型中引入了以下變量:生存概率加速函數、修正兒童婦女比、幼兒性別比,建立了修正隊列要素法模型;第二部分,在幾個重要假設的基礎上,根據修正隊列要素法進行浙江省未來五十年人口預測,給出了各預測年份分性別年齡的人口構成情況;第三部分,是在上述預測結果的基礎上,對21世紀前半葉浙江省的主要人口指標的變化趨勢進行討論,並對浙江省的總的人口變動趨勢及其對社會經濟發展影響進行分析。
  6. Shridan m t, cooper r a, west c m, et al. a high ratio of apoptosis to proliferation correlates with improved survival after radiotherapy for cervical adenocarcinoma j. j radia oncol biol phys, 1999, 44 ( 3 ) : 507 - 512

    致謝:感謝北京大學基礎醫學院朱萬孚教授、張波教授,侯琳老師及山東濟寧醫學院病理學教研室王旭教授,高繼發老師在病理相關實驗中給予的指導與幫助!
  7. This experiment also studied the transplanting technology of elaeagnus mollis diels tube plantlet and environmental conditions and the transplanting survival ratio was up to 66 %

    本實驗對翅果油樹試管苗的移栽技術及環境條件進行了探討,移栽成活率達66 。
  8. In the solution, the 0 - 1 integer and real number mixed encoding technique was employed to describe an artificial fish ; behaviors of a fish were dispatched by its body energy status ; the following behavior was described by the greedy method where moving step is direct ratio to a fish ' s hungry degree ; the lowest survival body energy controlling technique was used to realize escaping policy from locally optimum positions ; the maximum iterating times and the changing degree of the optimum solutions during iterating were used to control the terminating time

    在解算過程中,人工魚個體採用0 - 1整數和實數混合編碼方法描述;用人工魚體能累計和消耗程度來調度其行為;採用與饑餓程度成正比的移動步距的貪婪法描述個體追尾行為;採用最低生存體能控制來實現局部最優解逃逸策略;採用最大迭代次數和迭代過程中最優解平均值變化程度來控制迭代終止時機。
  9. It is however an international practice to compare treatment results of cancer using the " five - year relative survival rate " ( survival rate ), which is defined as the ratio of the proportion of observed survivors in a cohort of cancer patients to the proportion of expected survivors in a comparable set of individuals who do not have any cancer history

    不過,國際慣例是利用五年相對存活率(存活率)比較癌癥的治療結果。存活率是指兩個比例的比率,亦即一批癌癥病人中實際生存人士的比例,及另一組可供比較(亦從未患癌癥)的人士中預計生存人士的比例。
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