diameter and radius 中文意思是什麼

diameter and radius 解釋
直徑和半徑
  • diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • radius : n （pl radii ）1 半徑；半徑范圍。2 【解剖學】橈骨。3 （車輪的）輻；【物理學】輻射線；【無線電】徑...
  1. Methods ： fifty paired embalmed cadaveric humeri ( twenty - five pairs : fourteen from male donors and eleven from female donors ) were scanned in medial - lateral ( ml ) and anterior - posterior ( ap ) position according to the humeral retroversion by ct. images of the humeri in the transverse planes at the lowest border of neck ( lbn ), 20mm and 40mm distal of lbn ( lbn - 20 、 lbn - 40 ), isthmus, head - neck anterior - posterior ( hn - ap ) were obtained. sixty - one extracortical and intracortical parameters were measured exactly by image analytic computer software that included offset, head position, head - shaft angle, head to tuberosity height ( ht ), head thickness, curvature radius, articular surface arc ( sa ), neck diameter, isthmus position, proximal and distal border of isthmus, maximum coronal and sagittal diameter of medullary canal and thickness of cortical bone in four planes, including lbn, lbn - 20, lbn - 40 and isthmus

    方法： 50根成對防腐肱骨（男14對，女11對）按肱骨頭扭轉角置於冠狀位和矢狀位，行肱骨全長，頭頸矢狀面，解剖頸下緣及其下20mm 、 40mm ，髓腔狹窄部四平面ct掃描，由ct軟體測量冠、矢狀位髓腔內外參數共61項，包括頭心?干軸距，頭位置，頭干角，頭?結節高度差，頭厚度，頭半徑，關節面張角，解剖頸直徑，髓腔狹窄部位置，解剖頸下緣及其下20mm 、 40mm和狹窄部四個平面髓腔的最大冠、矢狀徑，皮質骨厚度等。
  2. Based on this model, the effects of geometric and structural parameters, such as injection pressure, rear pressure, length - diameter ratio, inlet round angle - radius ratio and non - axis symmetry of nozzle, on the distribution of the cavitation inside the nozzle are analyzed

    基於這一模型進一步分析了噴射壓力、背壓和噴孔長徑比、噴孔入口圓角比、非軸對稱噴孔等幾何結構參數對噴孔內空穴分佈的影響。
  3. While installation the ambient temperature should not be lower than 0, and the bending radius radius should not be less than 10 times of outer diameter of cable

    敷設電纜時的環境溫度不低於0 ，最小彎曲半徑應不小於電纜外徑的10倍。
  4. The experimental results show that the distribution of the radial static pressure behind the model cascade can be controlled by changing the diameter, number and distribution of the holes at different radius of the full circled backboard with the holes properly ， and the experiments variable enthalpy drop in the model cascade can be realized by using out - circled backboard or in - circled backboard which are set on the different distances from the trailing edge of the model cascade

    實驗結果表明，適當選擇全環鉆孔擋板不同半徑處的鉆孔率、鉆孔直徑與分佈，可調節靜葉后徑向靜壓分佈，採用外環或內環擋板，並將其分別置於靜葉的近、中、遠下游，可實現靜葉柵的變焓降實驗。
  5. For the construction of single - arch tunnel within cracked surrounding rocks, 8 tunnel models are set up to study the effect of the earth pressure distribution of the various surrounding rocks due to excavation. the relationships between the loosen zone of tunnel radial earth pressure and the tunnel diameter, the characteristics of surrounding rocks and the exposed time are revealed. it is showed that the pressure loosen radius is 1. 2 ~ 2. 0 tunnel diameters and the strongly loosen radius drops to 0. 5 ~ 1. 0 one for double lane tunnel

    對于單拱破碎圍巖隧道的構築問題，作者設置了8個隧道模型，研究開挖對不同隧道圍巖壓力分佈的影響，揭示了洞周徑向壓力的鬆弛范圍與洞徑、圍巖特性、裸露時間的關系，得到雙車道隧道壓力鬆弛半徑為1 . 2 2 . 0倍洞徑，強烈鬆弛區半徑為0 . 5 1 . 0倍洞徑。
  6. On spectral radius of trees given order, diameter and pendant vertex number

    直徑和懸掛點數的樹的譜半徑
  7. The principle of the sensor is analyzed theoretically for the first time, which is one of creation works in this paper. then, this paper studies the shape of the sensor, gives the relation among the sensor radius, the examining high - voltage and the enameled wire diameter, designs a high - voltage dc regulator and leakage detection circuit

    設計並研製了檢測裝置所用的傳感器，其中主要創新點在於初次從理論上分析了這種漆膜缺陷傳感器的工作原理，設計了傳感器的形狀，給出了傳感器檢測電極的半徑尺寸及檢測高壓與漆包線線經的關系數據，並且給出了傳感器半徑和寬度的選擇原則。
  8. The min curving radius : copper tape screened cable and steel tape armored cable should be at least 12 times the outer diameter. other cable should be at least 6 times the outer diameter

    電纜最小彎曲半徑：銅帶屏蔽電纜、鋼帶鎧裝電纜不小於外徑的12倍，其它電纜不小於電纜外徑的6倍。
  9. The optimization selection and comparison have been conducted on the ratios of major structural dimensions of ball cage patterned constant speed universal joint namely the ratio between central circle diameter of steel ball and ball diameter, the ratio between outer diameter of universal joint and diameter of graduation circle of inner sleeve spline and the ratio between eccentricity of ball cage patterned constant speed universal joint and central circle radius of ball

    對球籠式等速萬向節的主要結構尺寸即鋼球中心圓直徑與鋼球直徑之比、萬向節外徑與內套花鍵分度圓直徑之比，以及球籠式等速萬向節的偏心距與鋼球中心圓半徑之比進行了優化選擇和比較。
  10. The moon is the earth s only natural satellite. its average distance from the earth is 30 times the earth s diameter. its radius is only about one - fourth the earth s and its mass is only 1 81 the mass of the earth

    月球是地球唯一的天然衛星，地月平均距離為地球直徑的30倍，月球直徑只及地球的四分之一，質量則為八十一分之一。
  11. The threshold speed and the typical characteristics of the oil whip of the system are simulated under the nonlinear model of oil film force, and the state of motion and type of the bifurcation are analyzed by floquet multiplicators which is computed by the shooting method. secondly, the the nonlinear dynamical model of the low - pressure rotor - bearing system by column bearing with reduced dimensions is presented. the numerical results show the rule of the amplitude with the eccentricity of rotor, the length - to - diameter ratio, oil viscosity and the clearance - to - radius ratio of the bearing under the definite speed

    其次，對降維后的低壓轉子?軸承系統的非線性動力學方程，計算了圓柱瓦軸承支撐的轉子系統的振動穩定性在固定轉速下隨偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比的變化規律，並分析了轉子前軸承軸頸的失穩轉速與轉子偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比之間的關系，同時利用floquet理論分析其運動狀態和分岔類型。
  12. Yff cable series want a temperature between - 20 and 60 ; allowed long - period working temperature 70. bending radius of the cable on less than 10 times of short axis diameter

    Yff電纜系列的使用環境溫度為- 20至60 ；允許長期工作溫度為70 ；電纜彎曲半徑不小於電纜短軸尺寸的10倍。
  13. Installation temperature should be not lower than 0, and recommended allowable bending radius should be not less than 12 times of overall diameter of cable

    2電纜的敷設溫度應不低於0 ，推薦的允許彎曲關徑不小於電纜外徑的12倍。
  14. During installation the min ambient temperature shall be above 0 and the bending radius of cable shall not less than 6 times of its external diameter

    電纜的敷設溫度不低於0 ，推薦的允許彎曲半徑為不小於電纜外徑的6倍。
  15. We designed two kinds of diameter s - shaped curved arteries finite element numerical simulation geometric models in order to study the influence caused by the singular curved factor ( such as the curvature radius, the dean number ) to flow, and extract the characteristic flow form related to the curve

    在總結和發展前人成果的基礎上，設計了兩種直徑的s型彎曲動脈有限元數值模擬幾何模型，以考察單一的彎曲因素（曲率半徑、 dean數等）對流動的影響，以提取與彎曲相應的特徵流型。
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