播種密度 的英文怎麼說
中文拼音 [bōzhǒngmìdù]
播種密度
英文
density of crop-
Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100
論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上，簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理，對兩種測量方法存在的問題及誤差進行詳細分析和比較；針對位相解包裹錯誤點的傳播問題，作者通過改變解包裹路徑來提高位相解包裹的正確性；分析討論從解包裹位相（ x ， y ）到再現物體的高度h （ x ， y ）物理量之間的關系，研究相應的演算法，利用matlab平臺，對實際採集的條紋圖像進行處理和輪廓重構，其中改進及創新工作主要表現在以下兩個方面： （ a ）針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響，提出了一種用條紋穩定器穩定干涉條紋，用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法，建立了相應的測量系統，系統的條紋穩定可以達到。An optimum planting density must be employed to get a high yield, depending upon soil condition, varietal tillering ability, fertilizer level, number of plants per hill, and planting season
獲得高產必須採用最適植株密度，視土壤條件、品種分蘗力、肥力水平、每蔸苗數和播種季節而定。Studies on suitable planting density and time of sowing of potato on dry land in houshan area, inner monglia
內蒙古後山旱農區馬鈴薯適宜播種密度和播期研究Based on cultivating experiment of corn from 1996 to1999, the field researches on corn in arid mountainous area of changping was made on the sowing period, maize varieties, density of crop, methods of fertilizer application and mode of planting. furthermore, it is in this article that the system of cultivation techniques of high yield corn is discussed
1996至1999年進行多年玉米旱地栽培試驗，對昌平山區旱地玉米的播期、品種、播種密度、施肥措施、種植方式進行了分析研究，探討了昌平山區旱地玉米的高產栽培技術體系Plant population subsequently declined to less than 150 plants per sq. m. at about 65 mm planting depth
當播種深度為65毫米時，植株密度相應下降到150株/平方米。The knowledge model for pre - sowing plan design includes submodels of target yield calculation, variety selection, sowing or transplanting date, population density and sowing rate, fertilization and water management strategy
其中，播前方案設計知識模型包括產量目標、品種選擇、播栽日期、種植密度與播種量、肥料和水分運籌等。The sub - model for design of population density was developed according to the principle of determining boll number from target yield, fruit node from boll number, fruit branch from fruit node and population density from fruit branch by integrating the effects of sowing date, cutout date, effective temperature accumulation above 12, variety type, and fertilizer and water management levels. sowing rate was then decided by integrating the effects of different soil water and salt contents, ph, temperature and sowing style on seedling emergence rate with relative weight method
基於「以產定鈴、以鈴定節、以節定枝、以枝定苗」的原理，同時考慮播種日期、打頂日期、 12的有效積溫、品種株型特性、肥水管理水平差異等因素來確定適宜的種植密度；在此基礎上，應用相對權重法計算土壤含水量、含鹽量以及整地質量和播種方式等多個生態環境因子對出苗率的綜合影響，進而確定播種量。It is ascertained that it will increase the quantity of powdery mildew of wheat seedlings in the autumn under conditions of early sowing, over - density, over - watering, over - doses of fertilizer and growing of highly susceptible cultivars through large scale investigations in wheat fields
為了解栽培措施對防治小麥白粉病的作用，通過不同栽培措施對病情產生不同影響的大量田間調查，明確了小麥早播、密播，過量水、肥條件下的旺苗和種植高度感病品種，都會加重小麥秋苗帶菌量。Abstract : it is ascertained that it will increase the quantity of powdery mildew of wheat seedlings in the autumn under conditions of early sowing, over - density, over - watering, over - doses of fertilizer and growing of highly susceptible cultivars through large scale investigations in wheat fields
文摘:為了解栽培措施對防治小麥白粉病的作用，通過不同栽培措施對病情產生不同影響的大量田間調查，明確了小麥早播、密播，過量水、肥條件下的旺苗和種植高度感病品種，都會加重小麥秋苗帶菌量。Precision seeder, grain drill seeder, hill - drop planter, seeding monomer, and seed sowing device for the first time are realize to be tested on one comprehensive test - bed, and at the same time, hard problem of evaluating seeding accuracy from seed kernel space interval is solved
該系統首次實現了對精密播種機、穀物條播機、穴播機，及排種器等多類型播種機具播種精度的檢測，解決了通過直接獲得種子粒間距而檢測播種精度這一難點問題。The comprehensive seeding accuracy testing method proposed in this dissertation to test performance of precision seeder, grain drill seeder, hill - drop planter, seeding monomer, and seed sowing device is an integrative one with technology of computer vision, patter recognition, and automatic control
本文提出的適用於精密播種機、穀物條播機、穴播機，及排種器等多類型播種機具的播種精度檢測方法，是集計算機視覺、模式識別、自動控制為一體的綜合技術。It is found that the fwm field can cause the asymmetry of electromagnetically induce transparency profile. in addition, the effect of different propagating orientations of probe field on the electromagnetically induced transparency is also discussed. in the molecular multi - level system with the perturbed superposition levels, we discuss the electromagnetically induced transparency, spontaneous emission enhancement, double dark resonance and double electromagnetically induced transparency by using the density matrix equation under weisskopf - winger approximation and dressed - state density matrix equation
針對實際的實驗條件，考慮了一種影響量子干涉的新的因素-四波混頻場，研究了四波混頻場對雙光子探測的-型能級體系的eit的影響，發現四波混頻場能夠導致雙光子探測的eit線型的不對稱，在此基礎上，討論了不同探測場的傳播方式對eit的影響，針對分子中實際存在的包含有微擾能級的不同多能級系統，我們分別採用綴飾態繪景下的密度矩陣方程和weisskopf - wigner近似下的密度矩陣方程詳細地討論了電磁感應透明、自發輻射的干涉相消和相長、雙暗態共振和雙電磁感應透明現象。Tv and radio stations broadcast news about her activities and teachings. through god s boundless glory, landmarks of enlightenment were erected in cities and countries around the globe, lighting the way for countless lost sheep, leading them to master and back to the kingdom of infinite light. those of us who were privileged to accompany her on the tour to assist with the multitude of tasks required to deliver lectures to thousands of people in city after city, country after country, with no respite between crowded lecture venues, could only look upon master with amazement
1993弘法那百日期間，發送出無以計數的免費樣書傳單及海報，無遠弗屆的報紙廣播電視，載印師父的法相與教理，載播放送師父的法音，以數十種不同的語文，密集地從一個城市到一個城市，從一個國家到一個國家，帶著上帝無限的榮光，在地球的每一個角落，高高樹立起開悟的標志，照亮行路，引導數之不盡的迷途羔羊，走向師父返回光亮的國度。Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions. the ray path in plasma was calculated by the numerical solution of the vector equation of light ray, when the plasma density was closing to the critical electron density of the laser frequency. through the simulations, the factors that influence the measurement were found out under different density distributions and shapes of plasma
在此基礎上，採用數值模擬的方法，計算了在幾種典型的等離子體密度分佈下，激光波面的變化和產生的干涉圖樣；並用光線矢量微分方程的數值解法計算了當等離子體密度接近光頻臨界電子密度時，光線在等離子體中的傳播路徑，從中掌握了在不同的等離子體密度和形狀下，進行干涉測量所應估計到的因素。Dry matter accumulation trends of the each individual organ were predicted under the different condition such as varieties, densities, fertilizer applications and sowing dates
並以收獲指數作為遺傳參數調節不同品種器官的干物質分配比例，預測不同品種、不同密度、不同施肥、不同播期下各器官的干物質積累動態變化。The aim of this paper is to search for a new type periodic slow - wave structure with filling periodically magnetized plasma, and following works are done : 1. firstly, the investigation of wave propagation characteristic in magnetized plasma with periodically changing density is done. by numerical calculation, analyze the effect of additional magnetic field and plasma density changing on the propagation characteristic
本文的目的是探索一種周期磁化等離子體慢波結構，並做了如下的工作: 1 .對電磁波在密度周期變化磁化等離子體中的傳輸特性進行了研究，通過數值計算分析了不同外加磁場以及不同等離子體密度情況下波的傳播特性。Finally, the results are compared with periodic and random chains. then we studied acoustic wave propagation in 1d quasiperiodic and aperiodic systems by means of he transfer matrix. transmission rate, reflection rate, energy flow, logarithmic energy flow, energy density and lyapunov exponent are computed numerically, and compared with periodic and random system
其次研究了聲波在幾種一維準周期和非周期系統中的傳播，通過轉移矩陣的方法，數值地得到了系統的傳播系數t _ n 、反射系數r _ n 、能流密度j _ n ，能量密度e _ n和lyapunov指數，給出了以上各量與傳播長度n以及頻率之間的關系，同時發現能流及能量密度都具有分形結構，並與周期和隨機系統的結果作了比較。In this paper we present the relative degree adaptive flooding broadcast ( rdab ) algorithm for ad hoc networks to efficiently reduce the broadcast overheads in the network
將網路節點的密度概念作為選擇泛洪中繼節點的標準，提出了一種相對密度的泛洪廣播演算法? rdab 。分享友人