梯面寬度 的英文怎麼說
中文拼音 [tīmiànkuāndù]
梯面寬度
英文
tread run-
According to climate condition, soil condition and afforesting tree species and water requirement rule of forest and grass, the paper analysed and calculated the slope length for collecting stream of three site preparation methods which were reverse - slope terrace, level trench and scale - hole, and the slope length for collecting stream of deferent gradients and planting bandwidths were acquired
摘要根據寧南山區的氣候、土壤、造林樹種等，按照林草植被建設的水分需求規律，對不同水上流失區的反坡梯田、水平溝、魚鱗坑3種整地方式的集流坡面長度進行分析與推算，計算出了不同坡度、植樹帶寬度下的集流坡長。The paper includes the contents as follows : the second chapter introduces the basic theory of bp neural network, chapter 3 puts forward a solution named divide - assemble, chapter 4 introduces the preprocessing of input population, chapter 5 introduces the basic theory of genetic algorithms, chapter 6 discusses gdr - ga algorithms, 7 part introduces the processing of atm band - width distribution dynamically and gives several program modules among them. chapter 8 introduces the interface, running and results about the software system, the last chapter summarizes research work of this dissertation and further researches arc prospected
本文主要包括以下內容：第2部分闡述bp神經網路基本理論，第3部分介紹了拆分組裝方法，第4部分主要介紹了bp神經網路輸入樣本的預處理，第5部分介紹了遺傳演算法的發展及其基本理論，第6章介紹的是最速梯度? ?遺傳演算法，第7部分介紹了atm帶寬動態分配過程、子網與總網的學習過程和其中的一些關鍵程序模塊，第8部分介紹的是該系統界面和運行情況，最後一部分總結了論文所做的工作和進一步工作設想。In order to increase the energy dissipation of stepped spillway at iarge unit discharge, the integhty dissipater of aerated splitter pier and steppe characteristics is studied. because of verticaj diffhaion now by aerated splitter and impachng steppe 3 by drop flow, the air concentration and the energy dissipation efficiency are greatly increased ; the potentiality of cavitations is decrease. in special at large unit discharge, this effect is more obvious
摻氣分流墩的增加，明顯地改善了階梯面上的壓強分佈，消除或減小了階梯凹角內和立面上部的負壓；由於摻氣分流墩使水流縱向擴散以及挑流落下后在階梯上的撞擊，使水流的摻氣濃度和消能率都得到較大的提高，降低了階梯面空蝕的可能性，特別是在大單寬流量時，這種效果更為明顯。The results showed that quasi - isentropic compression energy waves were produced after the impact with mg - face of the flier - plate, whose initial velocity jump, peak velocity and front ' s rise - time were all different from the general shock loading wave profiles
結果表明，梯度飛片正向擊靶后產生的是波陣面明顯被展寬的準等熵壓縮波，準等熵壓縮波的初始速度跳躍、速度峰值和波陣面前沿的上升時間都呈現出不同於傳統沖擊波陡峭上升波形的特徵。The results of the three dimensional simulation emphatically show flow characteristics change along the spillway width and furthermore verify that the combination of k - e turbulence model with the vof model and unstructured grid can successfully simulate complex three dimensional turbulent flow on the stepped spillway
三維計算著重體現了流場沿溢洪道寬度方向的變化規律，進一步驗證了vof模型、非結構網格與卜。紊流模型相結合能夠成功地模擬三維階梯溢流壩面復雜流場。The results showed that quasi - isentropic compression energy waves were produced after the impact, whose initial velocity jump, peak velocity and front ' s rise - time were all different from the general shock loading wave profiles. furthermore, the higher the impact velocity, the smaller the extended wave ' s front while the higher the peak velocity
結果表明，梯度飛片擊靶后產生的是波陣面明顯被展寬的準等熵壓縮波，準等熵壓縮波的初始速度跳躍、速度峰值和波陣面前沿的上升時間都呈現出不同於傳統沖擊波陡峭上升波形的特徵。分享友人