等角航線 的英文怎麼說

中文拼音 [děngjiǎohángxiàn]
等角航線 英文
constant course line
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 角 : 角Ⅰ名詞1 （牛、羊、 鹿等頭上長出的堅硬的東西） horn 2 （古時軍中吹的樂器） bugle; horn 3 （形狀像...
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 航線 : air line; air route; route; airway; shipping line; way; itinerary; azimuth; pathway; trajectory; ...
  1. 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
  2. Using coordinate transformation method, the formula of imv on every point of image plane was deduced, and it included almost all motorial factors : the flight velocity of aircraft, roll, pitch, yaw, camera ' s scan and so on. thus, it is a precise formula, and it is also applied to frame cameras and push _ room cameras with array ccd

    利用坐標系變換的方法可推出像面上各點的像移速度公式，該公式包含了幾乎所有的運動因素：飛機的前向飛行、飛機的姿態角變化、相機自身的擺掃運動等等，是精確的像移速度公式。本公式同樣適用於畫幅式航空相機和線陣ccd推掃型航空相機。
  3. In this paper, an approach of the systematic artificial neutral net was introduced into the analysis on the ship - against - bridges probability with a computer programs. based on the basic data of the present 12 typical bridges as the sample, 4 chief influential factors as the input coefficient, such as the bridge span, the water flow rate, the incline angle between water flow direction and the direction normal to bridge axis, and the curve in the course near the bridge area, with the ship - against - bridge probability as the output coefficient, the intelligent judging system of the ship - against - bridges probability reflecting the influence of the above input parameters is obtained after training

    本文首次將人工神經網路系統方法引入了船撞橋概率的研究當中，編制了計算程序，成功地以現有12座典型橋梁的基礎數據為樣本，以橋梁跨徑、水流流速、水流方向與橋軸法線的夾角以及橋區航道彎曲度等4個船撞橋主要影響因素為輸入參數，以船撞橋概率為輸出參數，經訓練得到了能較好地反映上述輸入參數影響的船撞橋概率判斷系統。
  4. Aerospace series - bolts, double hexagon head with lockwire holes, relieved shank, long thread, in titanium alloy ti - p64001, anodized, mos2 coated - strength class - 1 100 mpa at ambient temperature

    航空航天系列.鈦合金ti - p64001制的帶安全鎖線孔細桿長螺紋陽極氧化鍍mos2的雙六角頭螺栓.強度等級. 1100mpa
  5. Aerospace series - bolts, double hexagon head with lockwire holes, relieved shank, long thread, in titanium alloy ti - p64001, anodized, mos2 coated - strength class : 1 100 mpa at ambient temperature

    航空航天系列.陽極氧化處理鍍mos2的ti - p64001鈦合金制細桿長螺紋帶安全鎖線孔的雙六角頭螺栓.強度等級: 1100mpa
  6. This tanker is built of steel, double engines, double propellers, double rudders, single bottom, single deck and fore raised deck for carrying bulk liquid of grade 3 fuel oil flashpoint above 60 as well as carrying cereal oil, palm oil etc, navigating between guangzhou pearl river delta to hk - macao line

    39 . 8m本船為鋼質雙主機雙槳雙舵單底單甲板艏部為升高甲板散裝液貨運輸船，可運載三級燃油閃點60度以上，亦可運載食用油棕櫚油或塑膠油等，航行於廣州及珠江三角洲至香港澳門航線。
  7. This paper researches and develops the digital simulation software of 3d terrain in accelerating the producing speed of plane triangle - net, the smoothing of waterway depth contour, the construct of waterway curve plane function, the drawing of 3d graphics and the waterway simulation

    本課題主要研究開發三維地形數字模擬軟體，在提高航道平面三角網的生成速度、航道等深線的圓滑處理、航道曲面模型的建立、航道立體圖的繪制及航道模擬等方面進行了一些研究和開發工作。
  8. Radar ( radio detection and ranging ) detect the objects in the space and estimate the objects " parameters, such as distance, azimuth, angle of elevation, velocity, by transmitting radio wave. in national economy, it is used in navigation, weather forecast, geological mapping, military affairs and so on

    雷達利用發射的無線電波探測空間中的物體並確定其距離、方位角、仰角、速度等各項參數，廣泛應用於導航、氣象預報、地質測繪、軍事等領域。
  9. For the problem of navigation planning, the selection of the navigation signpost, asteroids and the planning of the photoing sequence are important matter. this dissertation proposes criterions, including visible magnitude, distance, relative velocity, angle of sight lines, on selection of asteroids, based on the trajectory scheme of exploring ivar

    對于導航小行星篩選問題，提出了基於小行星可見星等、距離、相對速度、視線夾角的篩選準則，並利用綜合評估的方式進行導航小行星的篩選;對于小行星拍照序列規劃問題，分別採用反復最鄰近法和改進的遺傳演算法進行求解，並對兩種方法進行了比較分析。
  10. Shoreline planning is a new concept proposed in the thesis from the point of view of resources " management. shoreline plan is the one for all the shorelines of the whole river, the one with a marginal characteristic of multi - subjects involving river shipping, utilization of water resource and development of city, and the link for the combination of river shipping plan with the multi - utilization plan of water resources as well as the city master plan. not only the shoreline for port and sailing construction but also for the multi - utilization of water resources and the development of city is studied

    論文從資源管理的角度提出了岸線規劃的新概念，認為岸線規劃是針對整條河流全部岸線的規劃，是涉及內河航運、水資源綜合利用和城市發展等跨學科的、邊緣性的規劃，是聯系內河航運規劃與水資源綜合利用規劃及城市總體規劃的紐帶，它不僅研究港口與航道等航運基礎設施建設項目使用的岸線，而且研究水資源綜合利用和城市發展等多方面使用的岸線。
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