水下定向 的英文怎麼說
中文拼音 [shuǐxiàdìngxiàng]
水下定向
英文
underwater directing-
If we assume that the display device has 96 dots per inch in the horizontal direction and 96 dots per inch in the vertical direction, the endpoints of the line in the preceding example have the following coordinates in the three coordinate spaces
如果我們假定顯示設備在水平方向和垂直方向每英寸都有96個點，則上例中直線的終結點在三個坐標空間中分別具有以下坐標：Flexible cellular polymeric materials - laboratory assessment of horizont al burning characteristics of small specimens subjected to a small flame
軟質泡沫聚合材料.在小火焰條件下小試樣水平方向燃燒特性的實驗室評定The method is described as follows : the velocity of the moving part and the gas chamber pressure were measured with a dynamic test measurement system ; a dynamic model was built on force analysis of the moving part ; the total kinetic resistance replaced the horizontal friction and water resistance ; then the resistance - velocity relation curves at moving stages were obtained ; with the empirical formula of the gas chamber pressure and the resistance - velocity relation curves, the preliminary dynamic characteristics were analyzed and the structural form and key parameters of an underwater assault rifle were determined
具體方法為：由動力學測量系統測得活動件速度和氣室壓力；分析活動件的受力，建立動力學模型；以運動總阻力代替水平方向上的摩擦阻力和水阻力，獲得各運動階段的阻力速度關系曲線；利用氣室壓力經驗公式和阻力速度關系曲線，對水下突擊步槍進行初步的動力學分析，確定其構造型式及主要參數。Based on this, the upper controlling index of soil water content is 80. 4 % and the days of waterlogged and salinization tolerance is 3. 2 days. the moisture and salinization movement mathematical model in the field under subdrainage condition is based on the assumption of neglecting the effects of horizontal hydraulic gradient, it can analogy the changes of soil water content and salinization which are changed with times and depth
論文在忽略水平方向水力梯度影響的假定下建立了排水條件下麥田水鹽運移模型，模擬土壤水鹽含量隨時間、空間的變化情況。經與實測資料對比發現，計算值與實測值較為接近，故該模型及參數的確定是合理的，可用於預測麥田水鹽的動態變化。Matlab procedure is coded to compute the far - field sound pressure levels of the shell excited by radial point force. the influences of modal truncation, stringers, bulkheads and damping on the shell ' s far - field sound pressure are analyzed, laying down the basis for accurate analysis of the sound radiation from fluid - loaded reinforced double cylindrical shells
本文用matlab編製程序求解了單層殼在徑向激勵力作用下的遠場聲壓級，分析了模態截斷數、縱骨、艙壁板、結構阻尼等因素對殼體遠場輻射聲壓的影響，為準確計算加筋雙層殼在水下振動和聲輻射特性奠定了基礎。High resolution array processing for direction - of - arrival estimation of underwater multiple targets by computer simulation method
水下多目標定向高分辨陣列處理的計算機模擬方法研究The target locating is a classic and important problem of the underwater signal processing. based on the theory of array signal processing, the paper is devoted to the study of the theories and application technologies of doa estimation and underwater array signal processing in a systematic and detailed way, especially on the design of the digital multi - beamforming system
目標定向技術是水下信號處理研究的經典問題和重要方向，本文以目標定向和陣列處理理論為基礎，從實際應用出發，系統研究了水下目標定向和陣列信號處理的相關理論和實現技術，包括陣列信號處理的基本理論，數字多波束系統的設計。2 % 22 % and 29 % respectively less than using other three knives at cutting speed of 500mm / min when the moisture contents of rootstalks was 48. 2 %. the cutting forces were tested at four different parts of rootstalk that were the middle part along a radius, the tip part along a radius, the middle part along axis and the stalk part along a radius, and the force at the middle along a radius is the largest and increase 32 % 45 % 111 %, respectively more than at the other three parts. the force increase 37 % to cut the rootstalks from the areas one crop a year more than that from two crops a year
試驗結果表明，根茬含水率愈高，剪切力愈小，根茬含水率與剪切力近似為二次曲線關系；刀片剪切速度愈快，剪切力愈小；凸曲線、斜線、凹曲線和直線四種不同的刀刃曲線對整株根茬剪切力依此由小到大，凸曲線和斜線剪切時有一定程度的滑切作用，所以剪切力相比較小，當根茬含水率為48 . 2 ，剪切速度500mm min時，與其他三種曲線相比凸曲線型刀刃的剪切力依次分別減少了7 . 2 、 22和29 ；對根茬中部、梢部和根部的剪切力，在相同試驗條件下，徑向中部最大，比梢部，軸向根部和根部莖稈所需剪切力分別增加32 、 45和111 ；當含水率為48 . 2 ，刀片的剪切速度為500mm min時，一年一熟玉米根茬比一年兩熟的玉米根茬剪切力增大37 。To make the thermal efficiency best, y, a, av / as should be : r : [ 60 - 75 ] a : [ 1 - 1. 5 ] av / as : [ 0. 8 - 1 ] in this paper, numerical model of solar radiant floor heating system is also built. the model of numerical model is solved by finite differance method. the smaller the distance to the tube is, the higher the temperature on the surface of the floor is
地板表面相鄰兩管間水平方向的溫度分佈：距離加熱管越近，溫度越高；兩管中間處溫度最低；供回水溫差越小，地板表面溫度分佈越平緩；在供回水溫度和排管間距均一定的情況下，地板覆蓋層厚度越大，其溫度分佈越為平緩，對應的地板表面溫度分佈越均勻。As the traditional navigation system ca n ' t satisfy the requirements of the autonomous underwater vehicles ( auv ) navigation and position. we study a depthometer - doppler - aided strapdown inertial navigation system ( ddsins ) in combination of the developments of periodic navigation technique and some practical problem posed by the mathematical and variation of output data of doppler, furthermore, the digital simulation and semiphysica test are made to verify the validity of the algorithm, the main research work are as follows : design of the strapdown inertial navigation system of auv
由於傳統的導航系統很難滿足遠程水下航行器精確導航、定位的要求，本文在充分考慮使用特殊性的情況下，結合國內、外導航技術發展的實際狀況和發展方向，研究了水下航行器組合導航系統的誤差，重點解決了因多普勒輸出數據周期長和周期時變而給導航計算和濾波器設計帶來的問題，並進行了模擬和實物測試，模擬和實物測試結果表明本文所研究的設計方案合理，可以達到某型水下航行器導航、定位需要的精度。This method makes use of acoustical relative positioning technique, extending the dgps positioning technique for surface applications to underwater cases. with this positioning system, the submarine can directly get its longitude and latitude, and the positioning precision can ensure to be the same level as the surface application cases of dgps
系統採用系纜浮筏作為潛艇利用dgps進行水下定位的中繼站，利用水聲相對定位技術將dgps水面定位向水下延伸，使潛艇在工作潛深就可以直接獲得自身的大地經緯度坐標。The technology of directional butted & connected well means to butt & connect two or more wells directionally at the underground target extraction layer which is hundreds of meters away from the ground but hundreds of meters away from each other on the ground to fulfill mining with two or more wells connected
摘要定向對接連通井技術是採用定向鉆探技術和水平井技術，使地面相距數百米的兩井或多井，在地下數百米甚至數千米的目的開采層定向對接連通，實現兩井或多井連通采礦。Fault fracture zones often form in active fault zones and appear as long extension with stable trending, they are jointly controlled by active faulting, underground water concentration and freezing expansion
斷層裂縫沿斷層破碎帶定向分佈，產狀穩定，成群產出，與斷層活動、地下水運移、不均勻凍脹存在密切的關系，是構造變形與融凍變形聯合、內外動力耦合產生的復合成因地裂縫。Based on the established three - dimensional physical model, simplified terms, specified material parameters in thermal and physical properties, boundary conditions, and the calculation method of heat convection of cooling water, the numerical simulation and analysis on steady - state temperature field for continuous unidirectional solidification of niti shape memory alloy wire billets were proceeded under the condition of different combined parameters using ansys finite - element software
在建立三維物理模型以及確定材料熱物性參數、邊界條件與冷卻水對流換熱系數計算方法的基礎上，採用ansys有限元軟體對不同參數組合條件下鎳鈦形狀記憶合金線坯連續定向凝固的穩態溫度場進行了數值模擬。A method for establishing ballistic equation of underwater directional vehicle
一種建立水下定向航行器的彈道方程的方法For the problem of present engineering no criterion market and industry standard disunity of no - dig horizontal directional drilling under pipe paving, the view is put forward in particularity and security of no - dig horizontal directional drilling pipe paving and in reason using of under resource. it emphasizes engineering method data management and unify layout management of no - dig horizontal directional drilling. and it analyzes technology economic and discuss the development of under pipe directional equipment and put forward new thought and studying aspect of no - dig horizontal directional drilling construction engineering criterion management - the effect of all kinds of tache and factor in the different no - dig directional drilling construction are discussed from a great deal of detail no - dig engineering examples
就當前水平定向鉆進鋪設地下管線工程市場不規范和行業標準不統一的問題，本文從非開挖水平定向鉆進鋪管技術特殊性和安全性及地下資源空間的合理利用方面提出了自己的看法和見解，特別強調了對非開挖定向鉆進鋪管工程技術資料的管理和非開挖施工工程的統一規劃管理的問題，並對非開挖水平定向鉆進施工進行了技術經濟分析，並就非開挖施工工程的管線定位的儀器研發進行了分析探討，為非開挖施工的管線規范管理提出了新思路和研究方向。Standard test method for determination of draindown characteristics in uncompacted asphalt mixtures
在非壓實的瀝青混合物中測定向下排水特性的標準試驗方法Some key subjects of numeric analysis were discussed such as : selecting principles of constitutive equations of soft clay, the equivalent theory of vertical drains ground, the definition of load step, the determination of vertical drains as well as the treatment methods of the decline of groundwater level, sealing wall and nearby water source
著重論述了真空預壓加固地基數值分析中對土體本構方程的選擇、砂井地基等效轉換、分析荷載步的確定、豎向排水體的界定、地下水下降的處理、密封帷幕的處理、附近補充水源的處理等問題。Due to the limited underwater action scope of a submarine, and it must be provided well maneuver performance, not only the depth - keeping and directional steady motion but also quick elusion or entering the battle status, which brings forward a high demand to submarine control
由於潛艇在水下的活動范圍有限，同時潛艇又必須具備良好的操縱性能，既要保證定深，定向的穩定運動，又要能機動靈活的規避或進入武器發射的戰斗狀態。這樣就給潛艇的操縱控制提出了很高的要求。So, our team had not the chance to move horizontal on the mast when the ship was moving. about the 1, 200 meters running, the way was not clear and there is no enough instructors or staffs to direct the 36 trainees, it resulted in most trainees lost the way and failed to finish the 1, 200 meters that included me. according to the environment, city challenge instead of field challenge, camp on beach replaced sole stay in mountain, the tend of wind delayed the sailing schedule and it cancelled the raft race, it took away our opportunity of learning how to make raft by bamboo and large plastic tub
首先是船頭跳水，在港，正好鯊魚旺季，暫停營業，到了日本，又逢港口管制，被逼休假;而離港啟航的首個節目，本應是在行進的船上，爬上桅桿，再橫行桿上，學習解帆，雖然桿是上盡了，但雨卻落下來，船要轉帆，於是橫行桿上學習解帆這等壯觀場面，我們全組都無緣參與;再來是千二米長跑，指示不清，路線不明，以致多人迷路，被逼半途而廢;接下來的野外定向，因就地利，變身為城市挑戰;山中獨處換了沙灘露宿;風向延誤了航程，阻止了木伐競渡。分享友人