自地槽 的英文怎麼說
中文拼音 [zìdecáo]
自地槽
英文
autogeosyncline-
Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義30 litre couplant tank. automatic pumped supply with full recirculation. visual and electronic level display. continuous couplant monitoring by flow sensor and ultrasonically
30升的耦合劑儲蓄槽。自動化泵槽裝置可以將其完全循環利用。可顯示直觀的電子層面。通過流量傳感器和超聲波地來對耦合劑進行連續監控。These years people are trying to apply control arithmetic more advanced, such as adaptive control, fuzzy control and expert systerm etc, so we decided to design a hardwar & software bench which can be used to test these control arithmetic, it can simply but independently contrl the process of al electrolysis, and also can control the process according to the better arithmetic which is inputted by users
近年來人們又在嘗試採用更先進的控制演算法（比如自適應控制，模糊控制，專家系統等） ，因此我們設計了用於試驗控制演算法的軟硬體平臺，它既可以獨立地對電解槽作簡單的控制，也可以按照用戶輸入的控制演算法進行更加優化的控制。To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error
鋁電解生產現場電磁干擾非常嚴重，為此我們將需要測量的模擬信號就近轉換為頻率脈沖后再傳送到控制核心；採用浮地接入方式消除槽電壓信號中的共模成分；設計了量程自動切換電路以解決槽電壓的動態范圍寬和測量精度高的矛盾；用最小二乘法進行曲線擬和以降低測量的系統誤差。Wastewater collected from canteen kitchens, including that from basins, sinks and floor drains shall be fitted into foul sewer via grease traps capable for providing at least 20 minutes retention during peak flow
來自食堂廚房的廢水，包括來自水池、水槽和地面排水管的，應經由最大流量時能夠保持20分鐘的集油器，排入污水下水道。In this part, the first work is pretreatment of a numerical model, including creating calculating grids automatically, improvement of the linear boundary technique and so on. the second work is to estimate the siltation of a basin or channel by liu ' s equation. the third work is to build an edbms ( engineering data base management system ) for the result of mathematical model
其中主要的工作是：其中主要的工作一是數學模型的前處理，計算網格自動生成，線邊界法的優化；二是應用劉家駒公式在長江口深水航道治理工程地理信息系統的支持下實現港池、航槽開挖的實時回淤估算；三是將計算成果形成gis管理和支持下的工程數據庫系統（ engineeringdatabasemanagementsystem ） ，同時嘗試解決時間序列數據如地形沖淤變化，潮位、流速過程的分析、查詢和顯示問題，並實現實時、互動的動態演示及三維可視化。In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。Thaw settlement cause negative friction. this paper base on the thought of " initiative cooling ", aim at three problems existing in common concrete pile used in frozen soil, a new type of pile is proposed to overcome the disadvantages of the classical pile used in frozen soil. pile body within active layer is fluted and refilled with porous materials such as gravels and ballasts, convection will be occur and then thermal exchange inside porous material in winter while only heat conduction exists in summer, as a result the soil around flutings will be cooled, so the top line of permafrost will be drive up
本文基於「主動冷卻」地基的思想，以及針對凍土地區普通混凝土樁存在的三大問題，提出了一種新型樁的設計思路，運用數值模擬試驗手段對其冷卻機理與加固機理進行了系統研究，即在凍融活動層的深度范圍內，在混凝土樁身的表面刻槽，修築完時槽內填充碎石、塊石等多孔介質，通過外界大氣溫度的自然波動下多孔介質在冬季時存在的對流換熱機制，而在夏季只存在熱傳導，來達到主動冷卻樁周凍土和抬升凍土上限的目的。It is made of quality steel plate, which is stretched forming welded and plastic sprayed with bubble cement filled in its inner cavity. its pedestal is plated with zine and cast aluminum alloy, which height is adjustable and can be self - locked
線槽蓋板，地板採用優質鋼板經拉深成型點焊噴塑內腔填充發泡水泥填料，支座為鍍鋅結構，高度可調並能自鎖。Experiment data is analyzed with method of projection pursuit for more reliability and utility value. this paper first systematically studied energy dissipater of suspension girder in steep gradient with supercritical flow according to used in actual engineering and received perfect effect. experimental studies about the distribution velocity, the variation of water surface and pressure are undertaken
然而，文章主要針對已獲國家自然科學基金資助，且已在實際工程實踐中產生了良好消能效果的陡坡急流懸柵消能工的部分試驗成果，進行了較全面深入地討論，即具體根據試驗資料系統分析了懸柵陡槽內泄水時的流速分佈、底板壓力分佈及水面線變化情況。Other weapons on display in beijing are the j11b multifunction fighter, new generation 99g main battle tank ( mbt ), type 97 infantry fighting vehicle ( ifv ), hq9 long range surface - to - air missile ( sam ), and new 155mm self - propelled gun ( spg ), similar to the russian 2s19 spg
在北京的在展覽上的其他的武器是j11b多功能鬥士，新的第99代g主要的戰爭儲于槽中（ mbt ） ，鍵入97個步兵戰斗車輛（ ifv ） ， hq9渴望范圍地對空導彈（山姆） 、和新的155毫米自力推進的槍（運動游戲） ，類似俄國2個s19運動游戲。Supported by the state natural science foundation project " formation mechanism and evolution processes of flood channels in the changjiang estuary ", this paper study systematically the formation and evolution, erosion and deposition, and features of dynamic sediment of flood channels in the changjiang estuary, and put forward a development model of the different flood channels
本文依託國家自然科學基金課題《長江河口漲潮槽形成的機理與演化過程的定量研究》 ，以長江河口的漲潮槽為研究對象，採用沉積和地貌，定性和定量相結合的方法，運用gis技術對河口漲潮槽的形成機理、演化模式、動力沉積特徵以及沖淤變化等問題進行了系統的研究。Thus on masters instructions, fellow initiates from many countries travelled to the region in april to render aid, distributing relief materials at that time, and in june, helping villagers in the barmer district of rajasthan to build water tanks and consolidate wells. please refer to news magazine no. 144 for details
在師父的指示下，來自不同國家的同修於今年4月底前往賑災紓困，除了發放物資外，並於6月間協助巴摩爾地區的村民興建儲水槽及進行鞏固水井的工程請參閱本刊144期的報導。分享友人