留存比率 的英文怎麼說

中文拼音 [liúcúnbǐlǜ]
留存比率 英文
retention ratio
  • 留 : Ⅰ動詞1 （停止在某處不動; 不離去） remain; stay 2 （使留; 不使離去） ask sb to stay; keep sb where...
  • 存 : 動詞1 （存在; 生存） exist; live; survive 2 （儲存; 保存） store; keep 3 （蓄積; 聚集） accumulat...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 留存 : 1 （保存） preserve; keep 2 （存在） remain; be extant; 留存稿 [新] hold for release; embargoed m...
  • 比率 : ratio; proportion; rate比率計 ratio meter
  1. Hello, i ' m a ancient sword lover and badao forum is that i read everyday. but the ancient weapon i saw is rusted badly, or polished badly. i think for the sake to protect the little ancient weapon, whether ask a teacher such as mr. wudao to publish some posts about how to protect and polish ancient weapon. i think it ' s good for us to protect them. afterall as for some ancient weapon which needs polish a person had some polish knowledge must be more professional than a layman, and the damage to the weapon must also be less. i also know that ancient sword is better not to be polished, but we can ' t disturb peasants ' passion for earning more money. i think if let them polish randomly, we ' d better teach them some knowledge, which can decrease the damage, and leave some cowry to our offspring

    大家好，我也是古刀兵愛好者，拔刀論壇是我每天必看的.但我在下面見到的古兵不是銹蝕的不象樣子，就是被人用沙輪磨的面目全非.我想為了更好的保護本來就遺存不多的古刀兵，能否請無刀先生這樣的老師定期發幾個貼子，就古刀兵的保護，研磨（有些不磨不行）的基本，基礎知識給我們上幾節普及課.我想這樣更有利於古兵的保護.畢竟對有些不磨不行的古兵器有些研磨知識的人對它的研磨是比門外漢來得專業些，對其損傷小些.我也知道古刀劍最好不磨，但我們誰也左右不了鄉下農民兄弟想多掙錢的熱情，我認為與其認其亂磨，還不如教其些知識，減輕破壞率，為子孫多留些寶貝
  2. Enterprise growth management contains five key elements : objective growth rate, net interest rate in sale, property rate of turnover, rights multiple and subsist - profit ratio

    增長管理的基本要素有：目標增長率、銷售凈利率、資產周轉率、權益乘數與留存收益比率。
  3. Part 4 is the empirical analysis to chinese listed companies " financings behavior. reaching for the company ' s financing structural analysis of the developed country, making the conclusion : profit financing ratio is the highest financing, bank loan is the most important way in the external financing, final just selecting equity financing, analyzing to the financing structure of chinese listed companies, the listed company ' s financing

    第四部分我國上市公司融資行為的實證分析這部分包括第四章是本文的另?個重點，先對發達國家公司融資結構分析，發達國家公司融資順序為:留存收益比率最高，銀行貸款是最重要的外部融資方式，最後才』選擇股權融資。
  4. However, we ought to recognize that because of the low efficiency of our country ' s social circulation and the low level of the development of our country ' s logistics industry, there are still some problems for the application of the modern information technology as follows : ( 1 ) our application of the information technology is low - level ; ( 2 ) the application of the bar code is in advance, but its universal degree ca n ' t meet the demand of the development of the logistics ; ( 3 ) our application of the edi is very limited and the logistics information - sharing mechanism among the enterprises has not shape up ; ( 4 ) the network technology does remain in an initial stage ; ( 5 ) there are a few enterprises which are using various systems of integrated software for optimizing the disposition of the logistics operation

    但是我們也應看到由於我國社會流通效率低下，物流產業發展水平還比較低，現代信息技術的應用還存在著以下幾個問題：一是信息技術應用水平較低，在物流方面的應用還比較少；二是雖然條形碼技術應用開展較早，但普及程度仍不能滿足物流發展要求；三是國內edi的應用范圍非常有限，企業之間物流信息的共享機制尚未形成；四是網路技術仍然停留在初級水平；五是國內利用各種系統集成軟體優化配置物流作業的企業還非常少。
  5. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
  6. In detail, there are several ones as follows : ( 1 ) there is not a concept recongnized in the world ; ( 2 ) there is not a riper scale, especially fit for diagnosing internet addiction disorder of callan students ; ( 3 ) the research on iad stream & its characteristic is short of penetration ; ( 4 ) the reasons of iad researched still stay on the cursory lay ; ( 5 ) there has not any riper rectifying project about internet addiction disorder of callan students up to now

    現有研究主要存在以下問題： （ 1 ）國際上對網路成癮概念還沒有公認的界定； （ 2 ）沒有一個較為成熟的量表，特別是專門適用於青少年學生的網路成癮診斷的量表； （ 3 ）對網路成癮的流行率及特徵的研究不夠深入； （ 4 ）對網路成癮原因探究尚停留在一般描述水平； （ 5 ）至今仍沒有比較成熟的、科學有效的青少年學生網路成癮的矯治方案。
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