surface point 中文意思是什麼
surface point
解釋
曲面點；曲面對點-
Heat convected, a mode of motion developed by such combustion, was constantly and increasingly conveyed from the source of calorification to the liquid contained in the vessel, being radiated through the uneven unpolished dark surface of the metal iron, in part reflected, in part absorbed, in part transmitted, gradually raising the temperature of the water from normal to boiling point, a rise in temperature expressible as the result of an expenditure of 72 thermal units needed to raise i pound of water from 50 to 212 fahrenheit
燃燒所引起的運動形式之一-熱對流傳熱，不斷地加速度地從熱源體傳導給容器中的液體，由那凹凸不平未經打磨的黑色鑄鐵面把熱向周圍發散出去一部分反射回來，一部分被吸收，另一部分被傳導，使水的溫度從常溫逐漸升到沸點。這種溫度的上升可作為消費結果標志如下：將一磅水從華氏五十度加熱到二百十二度，需耗七十二熱量單位。 -
By the methods of epn ( electronic probing needle ) 、 sem and xed, the formation mechanisms of the wear - resistant composite layer are studied, the results indicated that, molten iron has infiltrated into the alloying layer under capillary action. this caused ht powder, whose fusion point is low relatively, to be surperheated and formed a surface composite layer
利用電子顯微鏡及x射線衍射等試驗方法，研究了復合層形成機理，研究表明，復合層是在毛細力作用下，鐵液被吸入合金層中，致使低熔點ht粉過熱熔化而形成的，並與母材是冶金結合。 -
Southerly, at many miles distance, and over the hills and ridges coastward, she could discern a surface like polished steel : it was the english channel at a point far out towards france
再往南好多英里，從海岸邊的小山和山脊上望過去，她可以看見像磨光了的鋼鐵一樣的水面：那就是遠遠地通向法國的英吉利海峽。 -
At the point c, the star develops a convection zone extending from near the surface deep into the extended envelope.
在C點，星體產生一個對流區，從表面附近向內擴展到廣袤的包層。 -
Therefore, the method of screen spreading is presented herein with the following basic feature : taking the surface of the perpendicular line at the end of the distortion and bottom as the datum plane, move the controlling point of every distortion part to the datum plane with the principle of changeless of geometry size, and then the spreading is formed
為此提出一種屏幕展開方法，此方法的基本要點是，以扭曲面末端垂直線和底部起坡線所在的平面為基準面，將扭曲面各分塊的控制點按幾何尺寸不變的原則搬到基準面，即可形成展開圖。 -
The surface temperature is less than 3 above the dew point
底材表面溫度沒有達到高於露點3以上的條件下。 -
The point on the earth's surface directly above is called the epicenter.
地表上直接對著震源的那一點稱為震中。 -
The epicenter is the point on the surface directly above the hypocenter
震中：地面上正對著震源的地方。 -
The measurement, gross weight, net weight of each package, port of destination and any necessary cautions such as “ do not stack upside down ”, “ keep away from moisture ”, “ handle with care ”, “ hookon point ” shall be stenciled on the surface of each package with fadeless pigment, whenever necessary
1每件包裝貨物的尺寸、毛重、凈重、目的口岸以及任何必要的注意事項，例如： 「不要倒置」 、 「防潮」 、 「小心輕放」 、 「起吊點」等，在有必要時應以不褪色的顏料印刷在每件包裝物的表面。 -
The contract no., measurement, gross weight, net weight of each package, the heat number, port of destination and any necessary cautions such as “ do not stack upside down ”, “ keep away from moisture ”, “ handle with care ”, “ hook - on point ” shall be stenciled on the surface of each package with fadeless pigment, whenever necessary
1每件包裝貨物的合同編號、尺寸、毛重、凈重、爐號、目的口岸以及任何必要的注意事項，例如： 「不要倒置」 、 「防潮」 、 「小心輕放」 、 「起吊點」等，在有必要時應以不褪色的顏料印刷在每件包裝物的表面。 -
It is another hot point to study the surface elastic free energy of liquid crystal
這一項的特殊之處在於：它明顯包含了指向矢的二階導數。 -
This is generally true, and there is a rise in surface tension of the latex at this point.
一般說來這是真實的，在這一點膠乳的表面張力變大。 -
Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest
文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。 -
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 -
The angle drawn at the point of incidence ( intersection of ) a reflected ray and the normal line perpendicular to the reflecting surface
中義光線在物體表面的投射點上反射出來的光線與物體表面垂直法線所夾的角度。 -
" when a particle beam is directed toward a point on the surface, the gold atoms bounce off and expose the silicon layer underneath just like a hammer and chisel, " zohar said
當粒子光束被導向于矽片表面的某一點，金原子反彈，露出底下的矽層，就像是鐵?與鑿子的作用，左哈爾說。 -
But as the paper moved from side to side under the pen point, its movement would be recorded in ink upon its surface
由於紙在筆下來回運動，紙的表面就會用墨水記錄下地板運動的情況。 -
In this thesis, based on pershing ii surface to surface missile, a new kind of ballistic missile was designed with an additional rocket engine, which can be ignited twice. firstly, aerodynamic computational models of missile body and warhead which reentry with supersonic are built according to the task requirements ; secondly, the propulsion system model of missile is built whose first two stages are solid rocket engines and the third stage is liquid - solid combined rocket engine. the nozzle and the shape of the engine are designed to meet the needs of the populsion project ; thirdly, the trajectory model of the mass point is built and a wavy trajectory is designed & optimized ; finally, the ability of a missile ' s breaking through defence is analyzed
以美國潘興導彈為原型，增加可兩次點火的末級發動機，改裝成具有跳躍能力的地地彈道導彈；首先，根據任務需求，建立了導彈的氣動模型，並建立了彈頭再入時高超聲速氣動模型；其次，建立了導彈推進系統模型，前兩級採用了固體火箭發動機，第三級採用了固?液組合火箭發動機，並在總體方案要求下，對發動機噴管和外形進行了設計；第三部分，建立了導彈質點彈道模型，設計了一條跳躍式彈道，並對跳躍式彈道進行了優化設計；最後，對導彈進行了突防能力分析，從分析的結果可以看出，跳躍式彈道的突防能力比常規的拋物線彈道要強。 -
Identifying and parameters extraction of quadric surface based on discrete point
基於離散點的二次曲面識別及參數提取 -
The fractal increment of dynamic subsidence of the ground surface point induced by mining
采礦引起地表點動態下沉的分形增長規律研究
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