span n 中文意思是什麼

span n 解釋
跨度,跨長,全長
  • span : n 1 一?〈手指張開時，拇指尖至小指尖的長度，通常九英寸〉。2 （常有短的涵義的）一段時間；很小的間隔...
  • n : 1. 【羅馬數字】90〈N＝90000〉。2. 【化學】＝nitrogen. 3. ＝North（ern）。N ＝nuclear 核的：N-waste 核廢料。
  1. By calculating large quantity of examples, this text studies earthquake resistant behavior of tapered portal frame with pined bases and analyzes its natural frequency, natural period of vibration and vibration mode. by comparing interior forces of pillar top, beam end and span midpoint in two conditions that seismic action effect participates combination of forces and not when portal frame is n ' t changed, ensure conditions that combination of seismic action effect has controlling f unction during tapered portal frame design, and tapered portal frame demands anti - earthquake design

    本文通過大量算例分析，研究柱腳鉸接楔形變截面門式剛架的抗震性能，並對其自振頻率、振型進行了分析；通過比較地震作用效應參與荷載組合與不參與荷載組合兩種情況下，樑柱截面尺寸不變時，柱上端、梁端、跨中截面處的內力大小，確定在什麼情況下地震作用效應組合起控製作用，變截面門式剛架需要進行抗震設計。
  2. If is a riesz basis for only is n ' t contained in span, then is a riesz basis for span by using ( )

    N的r二sz基，切。廠不必含于廁人h 。 n ；則在（ ）式下可得沮入。
  3. The diagonal flow fan has both the advantages of axial flow type and that of centrifugal type, the former of which is large coefficient of mass flow, high efficiency, and the latter is large pressure coefficient, wide span of work condition. consequently the diagonal flow type is a perfect selection for the performance zone which both the axial flow type and the centrifugal type ca n ' t reach, ant it has great value for engineering application

    斜流式風機不僅兼有軸流式風機大流量系數、高效率的優點和離心式風機高壓力系數、工作范圍寬廣的優點，因而在軸流式和離心式均不能覆蓋的性能區，斜流式風機是一種理想的選擇，有著較強的實用價值。
  4. It is concluded that a certain amount of diaphragm will reduce the distortion effect greatly, but on the other hand, even with a fairly great density of diaphragm, such as the ratio of diaphragm span to the greatest dimension of the cross section is as small as 1. 25, the distortion effect ca n ' t be neglected compared with the effect of rigid torsion

    通過研究得到初步結論：設置一定數量的橫隔板可以大幅度地減小薄壁桿件的畸變效應；另一方面，盡管橫隔板設置到比較大的密度（橫隔板間距與截面最大尺寸之比為1 . 25 ） ，與剛性扭轉效應相比，畸變效應仍不能忽略。
  5. The drilling hole pour pile technique has been wide - ranging used in the high buildings " foundation and base of the wide span construction and base of bearing weighty load construction, but the geology conditions that surrounding the pile are differ in thousands of ways, extraordinary, the soil there is small opening and it can be compressed and the bottom of the pile ' s hole there is much more dregs, so many confuse reasons ca n ' t be computed weaken the pile ' s ability of bear load

    鉆孔灌注樁施工技術在高層建築、大跨度、大承載力的基礎工程中得到了廣泛的應用，但是，地層土壤存在孔隙、土壤具有可壓縮性、孔底存在沉渣等許多不可明確計算的因素，使樁的承載力存在不同程度的削弱，實際承載力與設計值有較大出入。
  6. The thesis analyse some disadvantages of the existing system, which adopted broadcast communication and could n ' t span multi - net - segment to surveille the scene from the long - distance. just in such a background, we started to study the task of " digital network video surveillance system based on ip multicast ". in the thesis, problem of " real - time performance and qos of video transmission are addressed comprehensively

    論文分析了現有網路監控系統大多採用廣播的通信方式，不能跨越多個網段進行遠程視頻監控等不足之處，提出了本論文的研究任務與目標即「基於ip組播技術的數字化網路視頻監控系統」 。
  7. C. conversion 轉換 converse n 相反 adj 顛倒 的 conversely, general acceptance can sometimes span national and tribal borders

    反之，有時能夠跨越民族和部落的界限而被普遍接受。
  8. The robot of intervene come forth spherical joint and embranchment. in the paper, maximal angle of the robot of spherical joint when the robot is walking is given. when the span between two embranchments supers to each embranchment of diameter, the intervene ca n ' t happen

    針對這兩種情況給出了機器人在行走時不發生干涉的最大轉角45 ，兩個分支不發生干涉的條件是兩個分支中心線之間的距離大於每個分支的直徑。
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