方向常量 的英文怎麼說
中文拼音 [fāngxiàngchángliáng]
方向常量
英文
richtungskonstante slope-
The influence of the cloud droplet spectrum character and the spectrum growth and change is considered, which does not use a cut - off value for conversion from cloud water into rain water process. in the continuous coalescence equation, the particles fall velocity difference is not moved out from the integral, but is integrated in the equation as the function of diameter d to avoid the error of using particles average fall velocity. in the new scheme, generation rate of graupel due to the collection of snow by graupel and the collection of cloud ice by graupel are included
雲中凝結核ccn的數濃度採用超幾何函數表示；雲水向雨水的自動轉換過程採用grabowski （ 1999 ）的公式，考慮了雲滴譜的特徵和發展變化對該過程的影響，而不是採用原方案給定閾值的方法描述該過程；對連續碰並方程不再將粒子落速差作為常量提出積分號外，而是直接作為粒子直徑函數在積分號內求解，這樣處理可以迴避使用粒子群的平均落速帶來的誤差；增加了霰和雪、霰和冰晶的碰並微物理過程。At last, the conclusions of the whole thesis are drawn, and it is put forward that the future research emphases on the infrared radiation absorption ct technology should focus on : instantly get the absorption projections are the crucial factor to utilize the technology industrially ; on the basis of the hypothesis that the gas is ideal gas, species concentration of particular gas medium can be measured at the same time, which must be helpful to comprehend combustion essence ; if laser source to replaces blackbody stove, for irradiant flame, interferometric projection can be attained, and its temperature distribution will known
最後，對全文進行了總結，並指出今後研究工作重點。指出：瞬時得到各方向的投影是此技術實用化關鍵；在獲得溫度分佈信息基礎上，進行必要的假設和推導，能同時得到火焰中某特定組分濃度的分佈，這必將進一步我們對燃燒本質的理解；利用方向性好，輻射強度高的激光源代替常規的黑體爐，能得到輻射干涉投影圖像，這樣就能測量所介紹系統不能測量的發光火焰溫度分佈。Among the five kinds of nde ways ( rt, ut, et, pt, mt ), ultrasonic testing technology develops very fast because of its merits such as good orientation, strong penetration ability, higher energy and no harm to human health
在五大常規無損檢測方法中（射線、超聲、渦流、滲透、磁粉） ，超聲波無損檢測因其方向性好、穿透能力強、能量高以及對人體無害等優點而得到了迅速發展。This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to
本文共分為五章：第一章緒論中，介紹了常見的位移傳感器，指出了霍爾傳感器的優良特性，提出了基本任務；第二章介紹了霍爾元件的基本工作原理；第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用；第四章介紹了反饋隨動機構的測量原理，系統的實現方法，給出了實驗結果，構建了數學模型，並對誤差進行了分析；第五章展望中指出了今後的發展方向。Now some universities and institutes of china have made some samples of the lunar rovers and theirs wheels, but until now the wheel ’ s mechanical performance is seldom researched and tested. this paper will analyze the mechanical performance of the wheel and design a test - bed to test the performance of the lunar rover ’ s wheel. firstly, the mechanical characters of the soil are separated to press - sinkage character and shear character based on bekker ’ s theory, and common press - sinkage and shear models are introduced and the theory of lankine passive earth pressure is also introduced
根據bekker半經驗法的基本思想，將土壤的力學特性分解為水平方向的剪切特性和豎直方向的承壓特性，闡述了地面力學中常見的土壤的承壓、剪切等力學模型，並引入了朗肯被動土壓力理論，為建立車輪在松軟土壤中前進和轉向的力學模型奠定了基礎，同時進行了實驗土壤的剪切實驗，測量了土壤的內聚力和內摩擦角等參數。A mathematical model reflecting the tilt rotor unsteady and nonlinear aerodynamic characteristics in the longitudinal channel is presented in the paper. in the full flight envelope, the rotor thrust continues tilting and the aerodynamic forces of each component change as a function of airspeed and nacelle angle
在整個飛行包線內，旋翼的推力矢量方向不斷變化，飛機各部件的氣動力隨發動機短艙傾角和空速的變化而變化，因而飛機的飛行動力學有很強的非定常、非線性特性。By constructing the geometrical model of a certain underground single arm type pantograph and applying the translation of pantograph - head balancing bar and the perpendicular displacement of pantograph in the direction of the movement of locomotive while raising pantograph as the objective which must satisfy the demands of locomotive ' s stable current collection, this paper applied the multi - objective optimization based on the genetic algorithms to design the pantograph mechanism
摘要在建立某地鐵單臂受電弓簡化幾何模型的基礎上，根據列車平穩受流對受電弓提出的各項要求，以受電弓升弓時機車前進方向上的縱向偏移量和弓頭平衡桿的平動為目標，以受電弓正常升弓所需升弓轉矩等為約束，運用基於遺傳演算法的多目標優化技術，對該型受電弓機構進行了優化，得到了使受電弓運動性能達到最優的幾何參數。Being a liquid containing high organic pollutants, brewery wastewater may not only lead to environmental pollution, but also decreas e the utilization ratio of raw material used in beer production. therefore, many sc holars and breweries have paid much attention to developing new techniques for t reating and making use of brewery wastewater. this paper makes a comparison among various new techniques on the basis of analyzing the sources and characteristic s of brewery wastewater. it is concluded that a single technique can not effectiv ely remove the contamination from brewery wastewater, and only the combination of various techniques can achieve great benefits both in economy and in environment. thus, several proposals are put forward for future research
啤酒廢水中有機物的含量較高，如直接排放，既污染環境，又降低啤酒工業的原料利用率.為此，許多學者和廠家對啤酒廢水的處理與利用技術進行了研究.本文在闡述啤酒廢水的來源及特點的基礎上，對幾種常見的處理利用技術進行了比較，結論是：單一的處理和利用技術不能從根本上解決啤酒廢水的污染問題，只有將多種技術結合使用，才能達到經濟效益和環境效益的統一.最後，對未來的研究方向提出了幾點建議Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results
文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合According to the theory of light transmission, we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid, and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection, on the condition of several appropriate approximations and assumptions
進而導出了非均相結構電流變液在外電場與光場交互作用下旋光角與（入射線偏振光振動方向與外加電場方向間夾角）及參數（為外加電場e 、分散顆粒介電常數、體積分數、絕緣油介電常數、位置矢量（ ? ）等量的函數）的西北工業大學應用物理系碩士學位論文摘要理論表達式。Research of automatic gauging for storage tanks and the implement of the system [ abstract ] in order to accelerate gauging technology for storage tanks toward automation in our country, it is necessary to develop the automatic gauging system for storage tanks
為了加快我國儲罐計量向自動化方向發展的速度，研製和開發低成本、高精度的儲罐自動計量系統是非常必要的。Hand - held prayer wheels are spun clockwise with one hand using a hula - hoop motion with the wrist and forearm
手提式轉經輪通常是按順時鐘方向而轉旋轉的力量大都來自於前臂及手腕。Conventional single - observer passive locating methods are low in speed and precision. moreover, corresponding locating precision is sensitive to direction measurement errors, which puts forward high demands on measurement equipments impersonally
傳統的單站無源定位方法總的來說具有定位時間較長、定位精度較低的特點，並且定位精度對方向測量誤差非常敏感，在客觀上對測量設備提出了較高的要求。They will usually be swamped by forces working in the opposite direction.
它們常會被在相反方向起作用的力量所蓋沒。It is usually convenient to replace δs by its components δs1 and δs2 parallel to any two perpendicular axes ox, oy in the plane.
通常用它的分量s1和s2來代替s較為方便，它們分別沿平面內的ox，oy兩個正交的軸線的方向。For photographic measurement purposes, a strip of material having a transparency which varies in steps along its length is often used.
在攝影測量中，經常用到一種測試條，它的透明度沿長度方向逐級變化。Whether it is convenient to open the door with the users requirement. people in charge of measuring often ignore this problem and it may lead to dissatisfaction of the user
顧客要求的開門方向是否方便，經常有量尺人員會忽視這個問題，造成安裝后顧客不滿意。Proficient martial blood pires boys, and build the competent powers girl mao, believe that the majority of male compatriots have long been a candidate. it figures it can be the top choice of the name of the corresponding role, games started. the players task is very simple, that is, to screen the bad guys were all overthrown, and the school has a calm, control key figu
游戲的難度可謂非常之低，玩家只需要對準壞人不斷按動空格鍵，隨后順著箭頭指示的方向前進即可，畫面下方，能量槽之上的是玩家的體力槽，一旦被壞人攻擊便會減少，全部扣完的話游戲結束，不過相信這樣的情況很少發生，畢竟我們還有華麗的必殺攻擊呢！If a scalar field changes slowly, it resembles a constant, both in its fixed magnitude and in its lack of directionality ; relativity theory predicts it will produce a gravitational repulsion
如果純量場變化緩慢，它就會有固定的大小，而且沒有方向性，就像一個常數一樣；相對論預測，這種情況會產生重力排斥效應。This paper introduces the methods of hyperspectral images band selection based on the property of hyperspectral remote sensing images, utilizes the projection pursuit approach to find optimal solutions for a selected projection index based on dynamical evolutionary algorithm and then project a high dimensional data set into a low dimensional data space to produce a sequence of projection images, explores zero - detection method to threshold projection images to detect anomaly tar get
摘要運用基於波段間相關性的高光譜影像波段選取方法進行波段的預選取，採用投影尋蹤的方法在動力演化演算法的基礎上尋找最佳投影方向，將高維數據投影至低維數據空間，在各投影分量圖像上採用零點檢測閾值化的方法進行異常目標的提取。分享友人