等圓斷面 的英文怎麼說
中文拼音 [děngyuánduànmiàn]
等圓斷面
英文
equivalent section-
Being a sort of new principle micromotor in the fronitier of science. the ultrosonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor. compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism
超聲波電機（ ultrasonicmotor ）是近二十年來發展起來的一種新原理電機，其原理不同於傳統的電磁型電機，它是利用壓電陶瓷的逆壓電效應使定子的表面質點產生橢圓運動，通過定子和轉子之間的摩擦力驅動轉子運動。這種新型的電機與傳統電磁電機相比，具有響應快、不受電磁干擾、結構緊湊、低速、大扭矩、斷電自鎖等優點，因而在微型機械、機器人、精密儀器、家用電器、航天器、汽車等方面顯示出廣泛的應用前景。According to rigorous procedures, an experimental study was carried out to investigate the effects of jet exit velocity, flow direction, fluid subcooling and nozzle diameter on hysteresis of boiling heat transfer with impinging circular submerged jets of highly - wetting liquids
摘要系統地研究了液體在圓形斷面噴嘴浸沒射流作用下沸騰熱滯后與射流沖擊速度大小、液體流動方向、液體過冷度和噴嘴直徑等因素的影響。This paper reviewed an advance in diagnostic techniques of porcine circovirus from four aspects of the changes in clinic symptom and the pathology, separation and diagnostic of porcine circovirus virus, and diagnostic techniques of porcine circovirus
摘要從臨床癥狀和病理變化、病毒的分離和鑒定、針對病毒抗原和抗體的診斷技術等方面，綜述了豬圓環病毒病診斷技術的研究進展。Considering that the characteristics of our country ' s highway tunnels are always of long spans, tabular and of various geometry, by means of thorough analysis of the different problems existed in the design of support structures of the tunnels at present, this paper pays special attention to the two key problems, optimization method of form selection of structural section of the tunnel as well as the stability and bearing capacity of the support structures, in the design of the long and large tunnel on high - class highway, introduces the simplified complex - form optimum method in the structure optimization theory, discusses the optimum design model of lining section of highway tunnel with satisfying demands in building clearance, ventilation and load conditions, puts forward an optimization method of form selection of three different kinds of lining sectional forms ( i. e. single - center circle, three - center tabular circle and three - center sharp circle ), establishes a complete set of systematic optimum design the ory and method of long and large tunnel on high - class highway, develops the corresponding computer software used on the planned xuefeng mountain highway tunnel on shaoyang to huaihua expressway in hunan province for optimization of form selections of the structural sections, and obtains a series of relatively reasonable structural design parameters
本文針對我國公路隧道多為大跨度、扁平、幾何形狀呈多樣化的特點，通過深入分析目前隧道支護結構設計中存在的各種問題，抓住高等級公路長大隧道設計中隧道結構斷面的優化選型及隧道支護結構的穩定性與承載能力兩個核心問題，引入結構優化理論中的簡易復合形優化方法，深入探討了滿足建築限界、通風條件、受力狀態約束等條件下公路隧道襯砌斷面優化設計模型，提出了三種襯砌斷面形狀（單心圓、坦三心圓和尖三心圓）的優化選型方法，建立起一套完善的高等級公路長大隧道的系統優化設計理論與方法，並開發出相應的計算機程序，用於擬建的上海至瑞麗國道主幹線湖南省邵陽至懷化高速公路雪峰山長大高速公路隧道的結構斷面優化選型，得出了一系列較為合理的支護結構設計參數。Our company covers the area of 6000 square meter, including 700 square meter of office, 3800 square meter of goods, 1500 square of factor building, manufactures all kind of size of sliding doors and windows, side hung doors, balcony windows, fixed windows, double layer glass doors and windows, composite windows, off - type windows, arc windows, solid windows, shower stall etc. annual output of 30000 - 50000 square meter doors and windows are manufactured and designed
公司佔地面積10000平方米，其中辦公場地1000平方米，貨場5000平方米，廠房、庫房2500平方米，可以加工各種型號、規格的推拉門窗、平開門窗、陽臺窗、固定窗、雙玻（中空玻璃）門窗、組合窗、異形窗、圓弧窗、一體窗、隔斷等。The main factor and the judgement method of landslide stabilty are analyzed in the paper. the use condition and calculation process of landslide stability theory on circular arc slide plane, single plane slide plane, fold slide plane and bishop slice method are expounded in the paper. the calculation evaluation of landslide stability and the calculation of landslide thrust are also descibed in detail
論文分析了影響滑坡穩定的主要因素和滑坡穩定性的判斷方法，重點對圓弧形滑動面、單一平面滑動面、折線形滑動面、 bishop條分法等不同滑坡模式的滑坡穩定性理論計算方法的使用條件和計算過程作了詳盡的闡述，對滑坡穩定性計算評價和滑坡推力計算進行了詳細說明。分享友人