secondary grain 中文意思是什麼
secondary grain
解釋
次生晶粒-
Primary branch number, secondary branch number, primary branch grain number, secondary branch grain number and secondary branch grain rate are significantly positively correlated with grain number per panicle
一次枝梗數、一次枝梗粒數、二次枝梗數、二次枝梗粒數以及二次枝梗粒率都與每穗粒數呈極顯著的正相關關系，這些性狀的增加將有助於穗粒數的增加。 -
The results are as follows : grain number per panicle, seed density, secondary branch number, secondary branch grain number, secondary branch grain rate are significantly positively correlated with rice yield, & the yield is affected by all of them
產量與每穗粒數、著粒密度、二次枝梗數、二次枝梗粒數、二次枝梗粒率呈極顯著的正相關關系，這些性狀對產量都有積極意義，產量是其綜合作用的表現。 -
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。 -
The influences of the given speed, the size of the grain and the static load on the numerical controlled ultrasonic machining efficiency were discussed, the grey system theory was used to carry on the related analysis to these three factors, the main influence factors and secondary influence factors were found out, this can be used as the criteria in setting up the parameters in ultrasonic machining
探討二維數控超聲加工中工具移動速度、磨料粒度、靜壓力對超聲加工效率的影響，運用灰色系統理論對這三個因素進行了灰關聯分析，找出影響加工效率的主要影響因素和次要影響因素，為超聲加工中參數的設置提供了依據。
分享友人