secondary disaster 中文意思是什麼
secondary disaster
解釋
次生災害-
They are essential for sustaining the normal operation of a community. after a destructive earthquake, the damage of the lifelines and the secondary disaster are more serious in modern cities
城市的規模越大，現代化建設的程度越高，在強烈地震襲擊下，地下管網系統的地震破壞和由此產生的次生災害也越嚴重。 -
Source of secondary disaster of earthquake
產生地震次生災害的設施和環境 -
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。 -
Earthquack is a serious natural disaster. sometimes, secondary disaster indirect disaster parallel connection disaster which is more serious than earthquack happens
地震是一種嚴重的自然災害，而且有時伴生的次生災害、間接災害或並聯災害很可能比地震的直接災害更為嚴重。 -
Abstract : earthquake fire is a serious secondary disaster duringa earthquake. loss induced by earthquake fire may be much more than the loss induced directly by the damage of earthquake. based on the estimation method of earthquake damage and the experience in structural damage during earthquakes in china, the method to estimate the loss of earthquake fire is given
文摘:地震火災是一種嚴重的地震次生災害.歷史地震資料表明，地震火災造成的損失有時甚至超過地震的直接破壞所造成的損失.本文根據目前我國地震現場災害損失的評估方法，結合我國地震結構損失評估的經驗，建立了地震火災損失的評估方法
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