secondary population 中文意思是什麼

secondary population 解釋
次級種群
  • secondary : adj 1 第二（位）的，第二次的；中級的 （opp primary）。2 副（的）；從屬的；附屬的；輔助的；補充的...
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  1. Cardiomyopathies may be idiopathic or secondary to an underlying definable systemic disorder, especially in a young population

    摘要在年輕的族群中，有許多的先天性代謝異常疾病會造成心肌病變。
  2. It is aimed at providing more opportunities for people with secondary education to receive continuing education ; providing training in biliteracy and trilingualism and it applications ; helping the trainees build up a foundation in employment and continuing education ; enhancing the quality of hong kong working population and strengthen their competitiveness

    毅進計劃的目標是擴大中學程度人士接受持續教育的機會，提供兩文三語及資訊科技應用等訓練，為學員就業及持續進修打好基礎。提高香港人力質素，增強競爭力。
  3. Studies on population ecology showed that d. versipellis is able to grow on the hillsides of subtropical broadleaf or acicularleaf secondary forest where soil is fertile and the content of n, p, k is high and the ph is 5. 49 - 6. 59

    種群生態研究表明八角蓮適宜生長的土壤為中性偏酸（ ph5 . 49 6 . 59 ） 、有機質含量為7 . 34 33 . 33和n 、 p 、 k養分含量高的黃棕壤；其生長環境的植被為亞熱帶針葉混交林，伴生植物多為當地優勢種。
  4. Choice layer secondary considers the following factors : keep out reachs daylighting situation ; the convenience degree of the life ; environmental requirement ; domestic population age is formed reach healthy state ; the total number of plies of residential building

    選擇層次要考慮以下幾個因素：遮擋及採光情況；生活的便利程度；環境要求；家庭人口年齡構成及健康狀況；住宅樓的總層數。
  5. The higher landscape heterogeneity, the closer to nature secondary forest. along the gradient, landscape congregation index exhibits descendent tendency, showing a significant relationship between the extent of patch mosaic and the extent of disturbance, according to changes of landscape mean shape index ( lmsi ) and landscape mean fractal dimension index, integrated disturbance ( nature disturbance, human activities, vegetational inner succession or population dynamics ) tend to enhance

    景觀聚集度指數是隨著梯度區呈下降的變化趨勢，表明斑塊之間的鑲嵌聯系的程度與受到的干擾程度有極為重要的關系。從景觀平均形狀指數和景觀平均分維數的變化，可看出綜合干擾（自然干擾、人為活動、植被的內源演替或種群的動態變化）是呈增強的發展趨勢。
  6. They are agricultural productive materials price growth rate, sown area of grain crops growth rate, grain yield per area growth rate -, natural disaster covered grain areas growth rate, net grain import change rate, grain reserve change rate, population growth rate, per income growth rate, city and town population growth rate, food industry production value growth rate, year - end pig number growth rate, medical & pharmaceutical and textile industry production value growth rate, grain marketization degree, inflation rate using the previous year as base year ( preceding year = 100 ), public grain purchases price growth rate, investment in agricultural science and technology growth rate, investment in agricultural infrastructure growth rate, growth rate of graduates number from agriculture, forestry, science & technology universities and colleges and specialized secondary schools, government expenditure for agriculture and agricultural credit growth rate, international grain price growth rate, rmb exchange rate growth rate, last grain price growth rate, economic crop price growth rate, meanwhile, a new method is attempted to be used in this paper and the grain price early - warning problem is transformed into machine learning problem by introducing statistic learning theory and svm method which are gaining popularity in machine learning field at present in the world

    在此基礎上，篩選出23個警兆指標：農用生產資料價格增長率、糧食播種面積增長率、糧食單產增長率、糧食受災面積增長率、糧食凈進口量變化率、糧食儲備變動率、人口增長率、人均收入增長率、城鎮人口增長率、食品工業產值增長率、豬年末頭數增長率、醫藥紡織工業產值增長率、糧食市場化程度、以上年為基年的通貨膨脹率、國家糧食定購價格增長率、農業科技投入增長率、農業基礎設施投入增長率、農、林、科技高校大、中專畢業生人數增長率、財政支農資金比重及農業信貸增長率、國際糧食市場價格增長率、人民幣匯率增長率、上期糧食價格增長率、經濟作物價格增長率。同時論文在預警方法上作了新的嘗試，把糧食價格預警問題轉換成一個機器學習問題，引進當前國際上機器學習領域中比較熱門的統計學習理論和支持向量機方法，用順序回歸演算法對歷史數據進行學習建立了糧食價格預警模型。
  7. The density of population is low, meagerly - populated, live and disperse ; the economic base is weak, rely mainly on the fact that self - sufficient basically ; the ecological environment is fragile ; unreasonable industrial structure, the secondary industry and the third developing of the industry are slow

    人口密度低，人煙稀少，居住分散；經濟基礎薄弱，基本以自給自足為主；生態環境脆弱；產業結構不合理，二、三產業發展緩慢。
  8. Districts ) and ambulatory units have popularized 9 - year compulsory education. the population coverage rate of the 9 - year compulsory education has come to 52. 5 %. the enrollment rate of secondary school also increased from 70 % in the early 1990s to 82. 4 %, the outcome is inspiring. but at the same time we must notice that the large amount of dropout student in rural junior schools are now troubling the development of rural education ! since 1996, the situation of dropout of rural junior school student kept deteriorating, and the tendency of it will be worse. the dropout rate of some areas have come to more than 20 %

    「從1980年到1996年，小學學齡兒童入學率從93上升到98 . 6 ，小學畢業生升學率從75 . 9升至92 . 6 ， 1996年，全國已有92以上的人口的地區普及了小學教育，在全國2400多上縣（市、區）中，已有1482個縣（市、區）和行政區劃單位普及了九年義務教育，九年義務教育的人口覆蓋率達到了52 . 5 ，初中階段入學率也從90年代初期不到70提高到82 . 4 。 」
  9. Population increase is also a major factor behind china ' s relative slowness in establishing universal secondary school education

    人口增長也是中國普及中等教育比較緩慢的一個重要原因
分享友人
分享到 Line

分享到臉書