類數 的英文怎麼說

中文拼音 [lèishǔ]
類數 英文
class number
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. The results showed that the main microbes in the koji used in naturally fermented liuyang brown bean were mainly molds and bacteria, and less counting of yeast and actinomyces

    結果表明：瀏陽豆豉自然制曲成熟的曲料中主要微生物為?菌類和細菌類，而酵母菌類和放線菌類數量不大。
  2. The experimental results showed that in the condition of this experiment four algaecides all had strong removing rate on algae, and their removing rate increased with dose increasing, and decreased with algae density increasing. according to the removing rate on algae and cost value or so, the sequence of four algaecides from good to bad were potassium permanganate, copper sulfate, hydrogen peroxide and sodium hypochlorite. in the condition of this experiment, the suitable dose of potassium permanganate was 0. 8mg / l, the algal removing rate was beyond 90 % and the cost of this algaecide was only 0. 0068 / m3. the efficiency of algae removal by four algaecides for huanghe river water was studied. the results showed that the majority of huanghe river water was bacillaroiphyta, and the dominant genera was melosira, which reached 78 % ~ 94 %

    結果表明，在實驗條件下，四種殺藻劑均具有一定的殺藻效果，藻類去除率均隨藥劑投量的增加而提高；原水藻類數量影響殺藻劑殺藻效果，四種殺藻劑的藻類去除率均隨原水藻類數量的增加而降低；通過殺藻效果、經濟性以及安全性等方面的綜合比較，對于以有毒藍藻為優勢藻屬的引灤水，四種殺藻劑的優劣程度從優到劣排序為：高錳酸鉀硫酸銅過氧化氫次氯酸鈉；在實驗條件下，高錳酸鉀適宜投加量為0 . 8mg l ，藻類去除率高於90 ，所需的藥劑費用僅為0 . 0068元m ~ 3 。
  3. Generally, electronic computers are classified into two groups ; the digital computer and the analogue computer

    通常計算機可分為兩類，數字式和模擬式計算機。
  4. We shall study a very particular kind of sequences, called convergent sequences.

    我們將研究稱為收斂數列的很特別的一類數列。
  5. This test was aimed to investigate the species, quantity and endemic characteristics of dermatophyte on hair of pets in beijing

    本實驗的目的是對北京地區臨床健康犬、貓的皮膚真菌進行調查，以了解真菌的種類、數量和流行特點。
  6. The establishment of classification database is to manage easily the classification information and to provide necessary data for multi - way search. the establishment of key databank is to provide necessary data and information for dichotomous key search

    分類數據庫的建立是為了使分類資料的管理更加方便，也為多途徑檢索提供必需的資料；檢索表數據庫的建立則是為二項式檢索提供必需的數據、信息。
  7. The divisibility of class numbers of

    虛二次域類數的可除性
  8. With advanced technology and high - quality material, we produce all kinds of european - style components, including roman - style column, cornice, frieze, doorcase decoration, mushroom rock, etc

    本廠採用先進生產工藝和材料，直接生產各種型號、樣式的歐式配件，包括羅馬柱、檐線、腰線、門套、山花線、文化石、蘑菇石等幾十類數百種產品。
  9. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  10. According to the diagnoses of agricultural pollutant kinds, quantity and extent in taizhou, applying the systems engineering theory, using the prevention and cure experiences of advanced area for reference, the synthetic prevention and cure countermeasures of agricultural pollution are excogitated which include administrate mechanism, restraining technology, rule of law, scientific layout and devoted mechanism etc

    摘要本研究在調研分析泰州市農業污染源種類、數量及污染程度基礎上，剖析了農業污染的現狀，應用系統工程原理，借鑒先進地區的治理經驗及做法，從防治的管理機制、控制技術、法律法規、科學規劃以及投入機制等五個方面，組裝集成了農業污染綜合防治的對策。
  11. But some scientists said parts of the world do have problem, but others are doing a good job of protecting fishing populations

    一些科學家說，世界上一部分海洋確實存在問題，但是一些正做很多保護魚類數量的努力。
  12. Combine data from heterogeneous data sources into a single homogenous structure

    將來自異類數據源的數據組合為單個同類結構。
  13. Svm maps input vectors nonlinearly into a high dimensional feature space and constructs the optimum separating hyperplane in the spade to realize modulation recognition

    支撐矢量機把各個識別特徵映射到一個高維空間，並在高維空間中構造最優識別超平面分類數據，實現通信信號的調制識別。
  14. In lotic water, there were no significant difference in number of species and individuals between quantitative ( surber net ) and semi - quantitative ( kick sampling ) samples, although more species and individuals were collected by semi - quantitative than quantitative sampling. in lentic water, the significant difference was existed in the number of species ( z = - 2. 032, p < 0. 05 ), but it showed no significant difference in individuals between quantitative and semi - quantitative ( d - frame net ) samples. 2

    急流棲境中，半定量樣本（踢網樣）的個體數和種類數通常高於定量樣本（索伯網樣） ，但種類數無顯著差異；靜水-緩流棲境中，半定量樣本（ d形抄網樣）的個體數和種類數一般也高於定量樣本，且種類數有顯著差異（ z = - 2 . 032 ， p 0 . 05 ） 。
  15. The leaders of enterprise attend how to use cimcs technology to mange production kinds and quantify and control production process

    如何利用計算機管理與控制一體化技術對生產過程、產品種類數量進行更好的管理與控制已越來越為企業領導所關注。
  16. In accordance with the collection of mbmcas ( marine biological museum of chinese academy of sciences in iocas, institute of oceanology, chinese academy of sciences, qingdao 266071 ), chinese mitrid fauna should be rich, although the records from china seas are poor

    筆螺科（ mitridae ）是軟體動物門（ mollusca ）腹足綱（ gastropoda ）新腹足目（ neogastropoda ）中的一個重要類群，全世界種類數量已達500餘種。筆螺的研究歷史十分悠久，距今已有200餘年（ linnaeus ， 1758 ） 。
  17. All records both common and uncommon birds supplement the existing wwf ornithological research work and help us better understand population dynamics of bird species and groups inside the nature reserve

    無論是常見或罕見的雀鳥記錄，也對我們世界自然基金會在米埔的鳥類數目的研究工作有很大的幫助。
  18. Rule - based outlier mining approach in categorical data

    基於規則的分類數據離群挖掘方法研究
  19. The analysis to outliers normally called as outlier datamining

    對異類數據的分析處理通常就稱為異類挖掘。
  20. The great bustard is polyphagia bird, but it feeds mainly on plants. the feeding field habitat selection relate with that whether the grassland burn or not last year. the important factors that determine the feeding field selection are the plant species, vegetative cover score. density hemerrocallis minor and the density of pedacularis sp. on burning grasslandsjthe density of vegetation. insects quanlity. plant species richness and the height of plant are the main factors that determine the feeding field selection on unburning grasslands

    大鴇是雜食性鳥類，但以植物性食物為主。對于取食地的選擇往往跟草原上一年是否被火燒過有關。在火燒地，植物種類數、植被蓋度、小黃花菜密度和蒿密度是取食地選擇的重要因素；在非火燒地，植被密度、昆蟲數量、植物物種豐富度及植物高度在大鴇取食地選擇中發揮重要作用。
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